Alden Electronic & Impulse Recording 



Equipment Company, Inc. 

 Westboro, Massachusetts 



All American Engineering Company 

 DuPont Airport t Lancaster Avenue 

 Wilmington 5, Delaware 



Allied Research Associates, Inc. 



43 Leon Street 



Boston 15, Massachusetts 



Alpine Geophysical Associates, Inc. 

 55 Oak Street 

 Norwood, New Jersey 



Alpine Geophysical Associates, Inc. 

 2418 Tangley 

 Houston 5, Texas 



American Bosch-Arma Corporation 



Arma Division 



Garden City, New York 



Attn: E. J. O'Connell, Representative 



American Bosch-Arma Corporation 

 Suite 401 



1000 Connecticut Avenue NW 

 Washington 6, D. C. 



American Chain & Cable Co. , Inc. 

 Acco Equipment Division 

 York, Pennsylvania 



American Electronic Laboratories, Inc. 



Virginia Division 



1643 Lee Highway 



Fairfax, Virginia 



Attn: J. R. Jahoda, Vice President 



American Machine and Foundry Company 

 Alexandria Division 

 1025 North Royal Street 

 Alexandria, Virginia 



American Machine and Foundry Company 

 Electrical Products Group 

 1701 K Street NW 

 Washington, D. C. 



American Research and Manufacturing 

 920 Halpine Avenue 

 Rockville, Maryland 



American Systems, Inc. 

 1625 East 126th Street 

 Hawthorne, California 



American Systems, Inc. 

 Perkin-Elmer Corporation 

 1625 Eye Street NW 

 Washington 6, D. C. 



Ampex Corporation 

 218 Universal Building 

 Washington 9, D. C. 

 Attn: William Glass 



Anachemia Chemicals, Ltd. 

 Champlain, New York 



Ansonia Wire and Cable Company 

 111 Martin Street 

 Ashton, Rhode Island 



Ansonia Wire and Cable Company 

 333 Bond Building 

 1404 New York Avenue 

 Washington 5, D. C. 



American Instrument Co. , Inc. 

 8030 Georgia Avenue 

 Silver Spring, Maryland 



Arco Engineering Company 

 1000 16th Street NW 

 Washington 6, D. C. 



American Machine and Foundry Company 

 1 1 Bruce Place 

 Greenwich, Connecticut 

 Attn: S. Silverman 



Armour Research Foundation of 



Illinois Institute of Technology Center 

 10 West 35th Street 

 Chicago 16, Illinois 



American Machine and Foundry Company 

 Research and Development Division 

 689 Hope Street 

 Springdale, Connecticut 



American Machine and Foundry Company 

 7501 Natchez 

 Niles, Illinois 

 Attn: B. Johnson 



Askania Werke 



Division of Continental Elektroindustrie 



A. G. 

 U. S. Branch 

 4913 Cordell Avenue 

 Bethesda 14, Maryland 



Associated Engineers, Inc. 

 P. O. Box 628 

 Springfield, Massachusetts 



284 



