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3661457
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Information
Patent Grant
3661457
References
Source
Patent Number
3,661,457
Date Filed
Not available
Date Issued
Tuesday, May 9, 1972
52 years ago
CPC
G03B27/18 - Maintaining or producing contact pressure between original and light-sensitive material
G03B27/08 - for automatic copying of several originals one after the other
US Classifications
355 - Photocopying
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