Alabama Power C0.

Algonquin Gas C0.

Anoka Electric Cooperative

Appalachian Power Company

Arkansas Aeronautics Commission

Arkansas Power & Light C0.

Bancroft Mun. Light

Bandera Electric Coop

Bangor Hydro-Electric C0.

Bethlehem Steel C0.

Big Bend Electric Coop. Inc.

Bonneville Power Administration

Border States Electric

Braund, Inc., Anchorage, Alaska

Brown & Root, Inc., Evadale, Texas

California Pacific Utilities

Carlton County Co-Operative Power Assn.

Carroll Electric Cooperative Inc.

Cedar Falls Utilities

Central Illinois Light Company

Central Louisiana Electric Co.

Central Louisiana Power & Light C0.

Central Power & Light C0.

Central Rural Electric

Central Texas Electric Coop.

Charles T. Parker Construction

Cherokee County Electric Coop.

Chesapeake & Potomac Tel. Co. Of Md.

Chugach Electric Assn., Inc.

Cincinnati Gas & Electric C0.

Citizens Utilities, Kingman, Ariz.

City Of Bonners Ferry Light Dept.

City Of Cadillac, Michigan

City Of Clarksdale, Miss.

City Of Jacksonville, Fla.

City Of Merrill, Wisconsin

City Of Riverside, Calif.

City Of Tacoma, Washington

City Public Service Board, Texas

Coast E.P.A., Bay St. Louis

Comision Ejecutiva Hidroelectrica

Commonwealth Electric C0.

Community Electric Cooperative

Community Public Service C0.

Connecticut Light & Power C0.

Consumer Power C0.

Copper Valley Electric Assn., Inc.

Corps Of Engineers, Walla Walla, Wn.

Crawford Electric C0.

Cummins Supply C0.

Dairyland Power Coop.

Deaf Smith C0. Electric Coop., Inc.

Delmarva Power & Light C0. Of Maryland

Department Of Army, Maryland

Detroit Edison Company

Dolden Electric Ltd.

Douglas Electric Coop.

Dunkirk & Fredonia Telephone C0.

Eastern Iowa Light & Power Coop

Eastern Shore Service C0. .

Easton Aerial Spraying

Elec-Tel Supply Co.

Electric Supply C0. Of Galveston, Tex.

Elmendorf Air Force Base

Empire Electric Co.

Erie Mining Co.

Farmers Electric Coop., Inc. Of N. Mexic

Federal Aviation Administration

Fitchburg Power & Light C0.

Florida Power & Light Co.

Florida Power Corp.

Fort Hood, Texas

Fort Riley, Kansas

Four-County.Electric Power Assoc.

Georgic`. Power C0.

Glacier Electric Coop.

Golden Valley Electric

Golden West Telephone C0.

Graybar Electric Co., Inc.

Gulf Oil Corporation

Gulf Power C0.

Gulf States Utilities C0.

Hancock-Wood Electric Coop. Inc.

Hawaiian Electric C0.

Hill Co. Elec. Coop

Home Light & Power Co., Greeley, Colo.

Homer Electric Assn., Inc.

Honolulu International Airport

Hydro-Electric Power Comm. Of Ontario

Inland Power & Light C0.

Interstate Power Co.

Iowa Electric Light & Power C0.

Iowa Public Service C0.

Iowa-Illinois Gas & Electric C0.

Irby Construction C0.

Israil Electric Corp., Ltd.

Jack Pruzan C0.

Jamaica Public Service Co.

James Valley Electric Coop, Inc.

Jefferson Davis Electric Coop., Inc.

Jersey Central Power & Light Co.

Kandiyohi Coop Electric Assn.

Kansas Power And Light C0.

Kenai City Light, Alaska

Kimble Electric Coop

Korea

Lake Region Electric Coop Assn.

Lake Superior District Power Co.

Lane County Electric Coop., Oregon

Laredo Air Force Base

Long Island Lighting C0.

Louisiana Electrical Wholesalers, Inc.

Louisiana Power And Light Co.

Lower Valley Power And Light, Inc.

Lowry Air Force Base

Lts Electro System

Ludington Pumped Storage Project

Maine Electric Power C0.

Matanuska Electric Assn., Inc., Alaska

Maui Electric Co., Ltd., Hawaii

Maydwell Hartzell

Mc Leod Coop Power Assn.

Mille Lacs Electric Coop., Minn.

Minnesota Microwave C0.

Minnesota Power & Light

Minnesota Telephone C0.

Minnkota Power Cooperative

Mississippi Power & Light C0.

Missouri Power And Light

Montana-Dakota Utilities

Moon Lake Electric Assn.

Municipal Utilities Of Cedar Falls

Natin Village Of Tyonek, Alaska

Naval Ordinance Test Station

Naval Underseas Warfare Center

Nebraska Public Power System

New Mexico Institute Of Mining & Technology

New Orleans Public Service

New York State Electric & Gas Corp.

Niagara Mohawk Power Corporation

Nigerian Gulf Oil C0. Tri-Town Video, Inc.

North Arkansas Electric Coop., Inc.

North Pine Electric

Northern Electric Coop.

Northern Lights Inc., Sandpoint, Idaho

Northern Minn. Power Assoc.

Northern Neck Electric Coop., Warsaw, Va.

Northern States Power C0.

Omaha Public Power District

Orange & Rockland Utilities, Inc.

Oregon State Board Of Aeronautics

P. U. D. #1 Of Ferry County, Wn.

P.U.D. #1 Of Okanogan County, Wn.

Pacific Gas And Electric C0.

Pacific Power & Light Co.

Pacific Utility District #2

Path Products, Inc.

Pennsylvania Electric 00.

Philadelphia Electric Company

Plumas Sierra Rural Electric Coop.

Potomac Edison Co.

Power City Electric Co.

Power Line Erectors

Priester-Mell Co., Inc.

Procurement Division - U. S. Army

Public Service 00. Of Tulsa

Public Service C0. Of Oklahoma

Public Service Electric & Gas

Public Service Od. Of Colorado

Puget Sound Power & Light 00.

R.S.R. Electric Coop.

Raft River Electric Coop., Malta, I

Renville Sibley Coop.

Reynolds Elec. Eng. C0.

Rio Grande Electric Coop., Marfa, Tex.

Riverside Industries

Rochester Gas & Electric Corp.

Rural Coop Power Association

Salt River Project

San Bernard Elec. Co-Op

San Diego Gas And Electric C0.

Sandia Base, Albuquerque, N.M.

Shelby Electric Coop, Inc.

Sheyenne Valley Electric

Sioux Valley Empire Electric Co.

Southeastern Electric Coop

Southern Colorado Power Div.

Southwestern Electric Service 00.

Southwestern Public Service Co.

St. Croix County Electric Cooperative

Sulphur Springs Valley Electric Coop., Inc,

Sutton Spray (M., Inc.

Tampa Electric C0.

Texas Electric Service C0.

Texas Highway Department

Texas Power & Light 00.

Toledo Edison C0.

Tri-County Electric Assoc.

Tristate Electrical Supply C0.

Tucson Gas & Electric

U.S. Bureau Of Indian Affairs

U.S. Bureau Of Reclamation, Arizona

U.S. Department Of Agriculture

U.S. Geological Survey

U.S.A.F. Academy, Colorado

Umatilla Electric Coop.

Union Electric C0.

United Power Association

United Telephone Company Of N.W.

Utah Power & Light Company

Victoria County Electric Coop., Texas

Washington Water Power Co.

Wright-Hennepin Coop. Electric Assn.

Yazoo Valley E.P.A.

Yuma Proving Grounds