Method and apparatus for photocopying book pages
United States Patent 3192842

Inventors:
Heiss, Robert L.
Publication Date:
07/06/1965
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Assignee:
Heiss, Robert L.
Primary Class:
355/82
Other Classes:
355/132
International Classes:
G03B27/16; G03C5/10; G03B27/02; G03C5/08
US Patent References:
2998763Copier
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