United States Patent 2940847

Publication Date:
06/14/1960
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Primary Class:
430/45.100
Other Classes:
430/45.300, 430/102, 430/31, 430/110.200, 430/69, 430/128, 430/56, 430/901, 399/178, 430/32, 101/DIG.037
International Classes:
G03G17/04; G03G17/00
US Patent References:
2758939Electrostatic printing
2781704Xerographic copier
2807233Electrophotographic printing machine
2808328Method and apparatus for xerographic reproduction
2817277Electrophotographic camera
2845348Electro-photographic means and method