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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G03G15/08
using a solid developer, e.g. powder developer
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G03G15/0806
on a donor element, e.g. belt, roller
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G03G15/0818
characterised by the structure of the donor member, e.g. surface properties
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