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DE923131C
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Rotary rubber printing machines
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DE925172C
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Inking unit for rotary printing machines
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DE931657C
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Sheet feeding mechanism, especially for printing machines
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DE925170C
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Rotary rubber printing machine
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CA415898A
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Duplicating machine moistener
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CA424086A
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Duplicating fluid
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CA513397A
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Method of cleaning ink applying mechanisms and material used therein
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CA407104A
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Unit paper strip machine
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CA381693A
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Duplicating machine blockout mechanism
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CA404091A
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Copy sheet moistening apparatus
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CA316321A
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Non-adhering backing for hektograph blankets
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CA392890A
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Duplicating apparatus
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CA379407A
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Duplicating device
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CA410381A
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Sheet feeding mechanism
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CA416444A
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Sheet trimming device
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CA410989A
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Duplicating apparatus
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CA388524A
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Spindle and band for duplicating machines
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CA588815A
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Chemical reaction type duplicating process and transfer sheet adapted for use therein
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CA414451A
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Duplicating machine
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CA440404A
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Duplicating apparatus
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