B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
B25B13/00—Spanners; Wrenches
B25B13/46—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle
B25B13/461—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member
B25B13/467—Spanners; Wrenches of the ratchet type, for providing a free return stroke of the handle with concentric driving and driven member which are gear-operated
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Mechanical Engineering
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Details Of Spanners, Wrenches, And Screw Drivers And Accessories
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