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1866866
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Information
Patent Grant
1866866
References
Source
Patent Number
1,866,866
Date Filed
Not available
Date Issued
Tuesday, July 12, 1932
91 years ago
CPC
G03F1/88 - prepared by photographic processes for production of originals simulating relief
G03C5/04 - Photo-taking processes
G03C11/14 - Pasting Mounting
G03F1/90 - prepared by montage processes
US Classifications
396 - Photography
355 - Photocopying
434 - Education and demonstration
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