J. Ray McDermott & Company, Inc. 



Saratoga Building 



New Orleans 12, Louisiana 



Attn: R. N. Crews, Vice President 



J. Ray McDermott & Company, Inc. 

 Washington Office 

 1725 Eye Street NW 

 Washington 6, D. C. 



McDonnell Aircraft Corporation 



P. O. Box 516 



St. Louis 66, Missouri 



McGraw-Hill Publishing Company 

 1189 National Press Building 

 Washington 4, D. C. 



Markey Machinery Company, Inc. 

 85 So. Horton Street 

 Seattle 4, Washington 



The Marquardt Corporation 

 2709 N. Carey Avenue 

 Pon-iona, California 

 Attn: A. P. Vigliotta 



The Marquardt Corporation 

 16555 Saticoy Street 

 Van Nuys, California 



The Marquardt Corporation 

 Suite 210 

 1729 H Street NW 

 Washington 6, D. C. 



MacLeod Instrument Corporation 

 4250 N.W. 10th Avenue 

 Fort Lauderdale, Florida 



Marsh & Marine Manufacturing Co. 

 5123 Gulfton Drive 

 Houston 36, Texas 



Inc. 



Magnavox Company 

 2131 Bueter Road 

 Fort Wayne 4, Indiana 

 Attn: K. L. Hutchinson 



Mandrel Industries, Inc. 

 5134 Glenmont Drive 

 Houston 36, Texas 



Marshalltown Manufacturing Company 

 Dial Thermometer Division 

 Marshalltown, Iowa 



Martin Marietta Corporation 



ASW Department (G 3104) 



Electronic Systems and Products Division 



Baltimore 3, Maryland 



MEG Products 



Division Mandrel Industries, Inc. 



1238 Weller 



P. O. Box 3115 



Seattle 14, Washington 



Marine Acoustical Services 

 1974 N.W. South River Drive 

 Miami 35, Florida 



Martin Marietta Corporation 

 Aerospace Division 

 1701 K Street NW 

 Washington, D. C. 



Maser Optics, Inc. 

 (Trident Division) 

 89 Brighton Avenue 

 Boston 34, Massachusetts 



Marine Advisers 



P. O. Box 1963 



La Jolla, California 



Maxson Electronics Corporation 



475 Tenth Avenue 



New York 18. New York 



Marine Construction & Design Company 

 2300 W. Commodore Way 

 Seattle 99, Washington 



Maxson Electronics Corporation 

 801 - 19th Street NW 

 Washington 6, D. C. 



Marine Geophysical Services Corporation 

 2418 Tangley 

 Houston 5, Texas 



M & E Marine Supply Company 

 P. O. Box 601 

 Camden, New Jersey 



Marine Machine Works 

 2021 Avenue B 

 Galveston, Texas 



Meleney Engineering Company 

 828 Mills Building 

 Washington 6, D. C. 



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