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JPS60188641A
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Roller worm speed reduction gear
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JPS60188655A
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Roller screw jack driven by worm and worm wheel
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JPS60106799A
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Box jack
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JPS60102399A
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Up-down device for jack
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JPS6048897A
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Non-lubricated screw jack
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JPS6023297A
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Worm gear jack with roller screw
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JPS6023296A
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Hydraulic jack with chuck
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JPS59103081A
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Fixed quantity delivery valve
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JPS5993503A
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Lock jack
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JPS5931296A
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Automatic reciprocating hydraulic jack
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JPS58179517A
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Pipe distortion correcting device
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JPS58119597A
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Jacking device
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JPS57100293A
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Deflector apparatus in shield drilling machine
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JPS5682183A
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Oil pressure vibrator
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JPS5596438A
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Load tester
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