Patent classifications
G
PHYSICS
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G03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
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G03G
ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
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15/00
Apparatus for electrographic processes using a charge pattern
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G03G15/02
for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
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G03G15/0208
by contact, friction or induction, e.g. liquid charging apparatus
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G03G15/0216
by bringing a charging member into contact with the member to be charged, e.g. roller, brush chargers
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