JAPAN SPEED SHORE CO., LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6602031 Machining method and mist supplying apparatusExpiredFeb 22, 01Aug 05, 03[B23B, B23C]
6224296 Sliding double panel type trench shoring systemExpiredJul 09, 98May 01, 01[E02D]
6179692 Work machining methodExpiredJan 05, 99Jan 30, 01[B24B]
6123270 Work machining method and apparatus for supplying mist used thereinExpiredJan 05, 99Sep 26, 00[A62C]
4591298 Expansion beam for shoring up sand guardsExpiredNov 02, 84May 27, 86[E21D]

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