CONTRACT NUMBERS, CONTRACTORS, AND SUBJECT OF CONTRACTS 



Contract 

 X umbers 



Xante and Address 

 of Contractor 



Subject 



OEMsr-212 



OEMsr-20 



OEMsr-1130 



OEMsr-783 



OEMsr-1189 



Western Electric Company (for Bell 

 Telephone Laboratories. Inc.) 

 120 Broadway, New York, N. Y. 



The Trustees of Columbia University 

 in the City of New York 

 New York 27. New York 



The Trustees of Columbia University 

 in the Citv of New York 

 New York 27, New York 



Western Electric Company (for 

 Telephone Laboratories. Inc.) 

 120 Broadway, New York. N.Y. 



Bell 



Western Electric Company (for Bell 

 Telephone Laboratories, Inc.) 

 120 Broadway, New York. N.Y. 



Studies and experimental investigations in connection 

 with the development, construction and calibration 

 of hydrophonic standard receivers and projectors and 

 establish and operate field stations necessary for the 

 maintenance of a calibration system. 



Studies and investigations and the development of 

 methods and equipment pertaining to submarine 

 warfare. 



Studies and experimental investigations in connection 

 with the testing and calibration of acoustic devices 

 including operations of underwater sound reference 

 test laboratories. 



Studies and investigations in connection with the de- 

 velopment of calibration devices and methods in the 

 fields of hydrophonics, etc. 



Manufacture, stocking and repair of hydrophonic ap- 

 paratus. 



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