Kanto Special Steel Works Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5531659 Roll caster shell for use in a continuous sheet casting machineExpiredFeb 14, 95Jul 02, 96[C22C, B22C]
5505682 Cold rolling work rollExpiredJul 27, 95Apr 09, 96[C22C]
5445589 Cold rolling work rollExpiredJun 01, 94Aug 29, 95[B21B]
5078485 Temples for eyeglassesExpiredJun 08, 90Jan 07, 92[G02C]
5061441 Highly wear-resistant roll steel for cold rolling millsExpiredApr 13, 90Oct 29, 91[C22C]
4493360 Apparatus for rotary casting ingotsExpiredAug 30, 83Jan 15, 85[B22D]

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