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JP2003166518A
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Nut structure dynamically preventing looseness of screw
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JP2002266833A
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Device for dynamically preventing screw looseness of small screw or bolt
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JPH11214065A
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Plug having structure preventing conducting state from occurring
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JPH10235567A
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Partially cut nut rotating tool
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JPH06293342A
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Easily openable end wall for container
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JPS63284393A
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Drive for bay-window weather-window shutter
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JPS59113382A
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Disaster prevention cock
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JPS57167577A
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Gas trip valve operated at the time of earthquake
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JPS57157873A
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Magnetically closing gas cock at earthquake
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JPS56147971A
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Gas cock for closing horizontal hole through vibration
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JPS56127120A
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Gas cock for closing valve at earthquake
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JPS54123657A
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Motion converter
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JPS5214454A
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Lever device for time switch
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