Yajima Kogyo, Inc.

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Patent Activity in the Last 10 Years

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5146062 Feeding device for a welding boltExpiredApr 04, 90Sep 08, 92[B23K]
5105060 Automatic feed system for parts to be weldedExpiredDec 07, 90Apr 14, 92[B23K]
5007795 Supply head of nut feederExpiredOct 06, 89Apr 16, 91[B66L]
4789768 Projection welderExpiredDec 09, 86Dec 06, 88[B23K]
4754116 Projection welderExpiredMar 09, 87Jun 28, 88[B23K]

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