MURAKAWA, MASAO

Patent Owner

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6637984 Heat absorbing throw-away tip and heat absorbing throw-away tool using the throw-away tipExpiredOct 29, 01Oct 28, 03[B23P]
4282996 Method of continuous slitting of flat material and apparatus thereforExpiredFeb 07, 77Aug 11, 81[B26F, B23D]

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