US3199462A
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Rail threader
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US3220760A
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Multiple rail lifter
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US3155416A
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Automatic leveling device for tongs
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US3076673A
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Lifter mechanism with horizontally extensible jaw-supporting arms
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US3153555A
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Coil grab
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US3086808A
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Leg assembly for coil lifters
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US2987339A
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Articulated lifter
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US2945608A
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Coil lifting and positioning mechanism
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US2945609A
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Coil lifting and positioning mechanism
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US3097875A
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Control mechanism for electrically operated lifters
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US2920465A
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Torque limiting clutch assembly with heat dissipating and lubricating means
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US3022066A
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Driving mechanism for workpositioning tables
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US2959411A
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Shock absorbing linkage mechanism
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US2841434A
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Auxiliary coil lifting devices for the jaws of a sheet lifter
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US2631737A
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Highway crane
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US2483811A
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Work postioner
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US2490582A
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Dragline bucket
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US2396161A
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Work positioner
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US2250751A
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Lifter
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US2318791A
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Work positioner
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