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RCA Photophone, Incorporated regarding the development of a portable film sound recorder, 1931 April 02 to 1931 September 25

Level of Description
File
Date
1931-04-02 to 1931-09-25
Container
Box 491: Series V.,
To request this item in person:
Collection Number: MS-01036
Collection Name: Howard Hughes Film Production Records
Box/Folder: Box 491
English