Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B41
PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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B41F
PRINTING MACHINES OR PRESSES
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33/00
Indicating, counting, warning, control or safety devices
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B41F33/04
Tripping devices or stop-motions
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B41F33/08
for starting or stopping operation of cylinders
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