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Rotary welding member made of resin
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Patent number 4,832,549
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Issue date May 23, 1989
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Nifco, Inc.
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Teruji Shibayama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Rotary welding member made of resin
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Patent number 4,824,304
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Issue date Apr 25, 1989
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Nifco, Inc.
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Teruji Shibayama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Rotary welding member made of resin
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Patent number 4,780,035
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Issue date Oct 25, 1988
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Nifco, Inc.
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Teruji Shibayama
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Method for fixing stud on workpiece
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Patent number 4,566,924
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Issue date Jan 28, 1986
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Nifco, Inc.
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Kunio Hara
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL