Telecomputing Corporation 

 1725 1 Street NW 

 Washington 6, D. C. 

 Attn: Malcolm C. Tucker 



Thiokol Chemical Corporation 

 Suite 300 - Hill Building 

 839 17th Street NW 

 Washington 6, D. C. 



Tele -Dynamics 



Div. of American Bosch-Arma 

 5000 Parkside Avenue 

 Philadelphia 31, Pennsylvania 



John I. Thompson & Company 

 1118 22nd Street NW 

 P. O. Box 3531 

 Washington, D. C. 



Telemetering Corporation of America 

 8345 Hayvenhurst Avenue 

 Sepulveda, California 



Telemetering Corporation of America 

 17Z4 Connecticut Avenue NW 

 Washington 9, D. C. 



Telephonies Corporation 



Park Avenue 



Huntington, L. 1. , New York 



Texaco Experiment, Incorporated 

 P. O. Box 1-T 

 Richmond 2, Virginia 



Texaco, Inc. 



Marine Department 



135 E. 42nd Street 



New York, New York 



Attn: F. I. Owen, Manager, Operations 



Texas Instruments, Incorporated 

 Geosciences Department 

 P. O. Box 35084 

 Air Lawn Station 

 Dallas 35, Texas 



Texas Research Associates 

 1701 Guadalupe Street 

 Austin I, Texas 



Texas Research & Electronic Corporation 

 Meadows Building 

 Dallas, Texas 



Textran Corporation 



Box 9207 



Austin 17, Texas 



Thiokol Chemical Corporation 

 Bristol Division 

 Bristol, Pennsylvania 

 Attn: Contract Office 



Tracerlab, Inc. 



Contract Sales 



226 Massachusetts Avenue NE 



Washington 2, D. C. 



Transister Applications, Inc. 

 47 McGrath Highway 

 Somerville, Massachusetts 



Trans-Sonics, Inc. 



P. O. Box 328 



Lexington 73, Massachusetts 



Trident Engineering Associates 

 P. O. Box 1442 

 Annapolis, Maryland 



G. K. Turner Associates 

 2524 Pulgas Avenue 

 Palo Alto, California 



W. S. Tyler Company 

 3615 Superior Avenue 

 Cleveland 14, Ohio 



Undersea Technology Magazine 

 19040 Mauna Loa Avenue 

 Glendora, California 

 Attn: Robert G. Bates 



West Coast Editor 



The Underwater Defense Letter 

 1722 Wisconsin Avenue NE 

 Washington, D. C. 



Underwater Sports 



2219 Biscayne Boulevard 



Miami, Florida 



Underwater Systems, Inc. 

 2446 Reedie Drive 

 Wheaton, Maryland 



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