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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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7/00
Rotary lithographic machines
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B41F7/02
for offset printing
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B41F7/12
using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines
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