Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B25
HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
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B25B
TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
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23/00
Details of, or accessories for, spanners, wrenches, screwdrivers
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B25B23/02
Arrangements for handling screws or nuts
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B25B23/08
for holding or positioning screw or nut prior to or during its rotation
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B25B23/12
using magnetic means
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