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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2215/00
Apparatus for electrophotographic processes
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G03G2215/01
for producing multicoloured copies
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G03G2215/0151
characterised by the technical problem
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G03G2215/0158
Colour registration
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