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                  De Forest Phonofilm, 
                  Incorporated
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                  Type of Company
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                  Production and distribution company
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                  Country of Origination
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                  United States of America
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                  Years of Operation
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									Formed November 1922 
                  Active 1922 through 1927
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                  Company Principals
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                  Lee de Forest
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                  Company Offices
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                  218 (and/or 220) West 42nd Street, New York, New York, USA
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                  Company Studios
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                  317 East 47th Street in New York, New York, USA
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									 De Forest Phonofilm, Incorporated, was established to develop the sound-on-film technology developed by Lee de Forest and Theodore W. Case. Separate companies were established in the United Kingdom and other countries. 
                  References: Brownlow-Parade p. 568. 
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