Electrophotographic apparatus
United States Patent 2588699

Inventors:
Carlson, Chester F.
Publication Date:
03/11/1952
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Assignee:
Carlson, Chester F.
Primary Class:
399/168
Other Classes:
250/324, 347/140, 361/229, 250/325, 101/DIG.037
International Classes:
G03G15/02
Other References:
None