Space Technology Laboratories, Inc. 

 1625 I Street NW 

 Washington b. D. C. 



Sparton Corporation 

 422 Washington Bldg. 

 Washington 5, D. C. 



Sparton Electronics 

 Division of Sparton Corporation 

 2400 E. Michigan Avenue 

 Jackson, Michigan 



Studebaker -Packard Corporation 



Room 505 



1725 K Street NW 



Washington, D. C. 



Submarine Research Laboratories 



104 Colby Road 



North Quincy, Massachusetts 



Superior Cable Corporation 

 P. O. Box 480-A 

 Hickory, North Carolina 



Specialty Electronics Development Corp. 

 131-01 - 39th Avenue 

 Flushing 54, New York 



Spectran Electronics Corporation 

 146 Main Street 

 Maynard, Massachusetts 



Spencer -Kennedy Laboratories, Inc. 

 1320 Soldiers Field Road 

 Boston 35, Massachusetts 



Sperry Gyroscope Company 

 Division of Sperry Rand Corporation 

 Great Neck, L. I. , New York 

 Attn: W. R. Griswold 



Sylvania Electronic Products, Inc. 

 100 First Avenue 

 Waltham 54, Massachusetts 

 Attn: Library 



System Development Corporation 

 2500 Colorado Avenue 

 Santa Monica, California 



System Development Corporation 

 1725 I Street NW 

 Washington 6, D. C. 



Systems Engineering Laboratories 



P. O. Box 9148 



Fort Lauderdale, Florida 



Sperry Rand Research Center 

 North Road 



Sudbury, Massachusetts 

 Attn: Guenther Knapp 



The Sport Fishing Institute 

 Bond Building 

 Washington 5, D. C. 



A. M. Starr Net Company, Inc. 



12 Summit Street 



East Hampton, Connecticut 



Sterling Engineering Company 

 Newark, New Jersey 



Stroudsburg Engine Works, Inc. 

 63 North Third Street 

 Stroudsburg, Pennsylvania 



Studebaker -Packard Corporation 

 635 S. Main Street 

 South Bend 27, Indiana 



Tacoma Boat Building Company, Inc. 

 132 Sitcum Waterway 

 Tacoma 2, Washington 



Robert Taggert, Incorporated 

 400 Arlington Boulevard 

 Falls Church, Virginia 



W. A. Taylor & Company 

 7300 York Road 

 Baltimore 4, Maryland 



Technical Products Company 



6670 Lexington Avenue 



Los Angeles 38, California 



Attn: R. C. Moody, Engineering Mgr. 



Tecknicon Engineering Associates 

 187 Garibaldi Avenue 

 Lodi, New Jersey 



Tektronix, Inc. 

 4205 Evergreen Lane 

 Annandale, Virginia 



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