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US2657724A
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Expanding bit screw driver
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US2657721A
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Screw feed and drive mechanism
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US2618187A
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Power-driven gear operated wrench
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Tool for running threaded fastening elements
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US2657595A
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Pressure fluid operated tool with pressure fluid control feed
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US2693728A
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Power-operated gear controlled socket wrench
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US2607197A
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Sequential motor operation under control of individual, fluid actuated, relieved pressure valves
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US2674098A
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Portable power-driven tool for drilling and like operations
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US2627248A
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Pressure fluid actuated tool with improved valve actuating means
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US2607252A
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Portable power driven nut setter
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US2564345A
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Clutch drive mechanism for poweroperated screw drivers and the like
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US2507737A
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Power-operated nut setter
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US2543942A
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Power-operated nail driver
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US2575640A
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Lubricating system for air motors
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US2606736A
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Push type reversing valve
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US2625005A
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Hoist hook assembly
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US2614419A
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Combination nut running and setting tool
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US2488992A
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Dashpot for portable tools
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US2476632A
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Rotary impact tool
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US2614418A
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Torque wrench
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