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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G03G15/04 for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
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G03G15/04036 Details of illuminating systems, e.g. lamps, reflectors
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G03G15/04045 for exposing image information provided otherwise than by directly projecting the original image onto the photoconductive recording material, e.g. digital copiers
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