RCA, Hazeltine & Johnson Labs. licensing for US TV sets

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RCA, Hazeltine & Johnson Labs. licensing for US TV sets  
23.Jul.08 11:49
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Wolfgang Scheida (A)
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RCA, Hazeltine & Johnson Labs. licensing for ~1940s/1950s US TV sets

The following textures in extracts you will find on 1940s Stromberg-Carlson and probably other brand TV sets:

This apparatus is licensed under the United States Patent rights of:

Hazeltine Research Inc.

Radio Corporation of America (RCA)

Edwin H. Armstrong (FM)  patents # 1.941.069 , 2.295.323 , 2.323.698 &  Re. 21.660

Johnson Laboratories Division of the Mantle Lamp Company of America  

If you know something more about the last mentioned company and their radio & TV related patents please do not hesitate adding your knowledge to RM.org!

Thanks in advance.

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