KABUSHIKI KAISHA SAKAMURA KIKAI SEISAKUSHO

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6485371 Grooved nut and manufacturing method thereofExpiredJan 03, 01Nov 26, 02[B21K, B21H, B21D]
6332347 Apparatus for full-enclosed die forgingExpiredSep 08, 00Dec 25, 01[B21J]
5865057 Work transfer in multi-stage forging apparatusExpiredNov 03, 97Feb 02, 99[B21J]
5813272 Apparatus for full enclosed die forgingExpiredMay 09, 97Sep 29, 98[B21J]
5657663 Multi-stage forging apparatusExpiredNov 20, 95Aug 19, 97[B21J, B21D]

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