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with pillars, posts, rods, or tubes
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Industry
CPC
B42F13/12
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Parent Industries
B
PERFORMING OPERATIONS TRANSPORTING
B42
Bookbinding
B42F
SHEETS TEMPORARILY ATTACHED TOGETHER FILING APPLIANCES FILE CARDS INDEXING
B42F13/00
Filing appliances with means for engaging perforations or slots
Current Industry
B42F13/12
with pillars, posts, rods, or tubes
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