RAYCON CORPORATION

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4896012 Low friction wire guide for electrical discharge machineExpiredApr 03, 89Jan 23, 90[B23H]
4873415 Method for welding galvanized materialExpiredFeb 02, 88Oct 10, 89[B23K]
4858243 Laser pumping cavityExpiredJun 12, 87Aug 15, 89[H01S]
4818834 Process for drilling chamfered holesExpiredMar 21, 88Apr 04, 89[B23K, B23H]
4633053 Electrical discharge machine with automatically replaceable electrodesExpiredMay 27, 82Dec 30, 86[B65H, B23H]
4510365 Electronic depth controller for EDM apparatusExpiredMay 06, 82Apr 09, 85[B23P]
4495394 Electronic depth controller for EDM apparatusExpiredJun 05, 84Jan 22, 85[B23P]
4361745 Process control for electrical discharge machining apparatusExpiredSep 21, 79Nov 30, 82[B23P]
4195448 Two-point contact steady rest followerExpiredMay 15, 78Apr 01, 80[B24B]
4191878 Electrode positioning gage for multiple electrode electrical discharge machining apparatusExpiredAug 19, 77Mar 04, 80[B23P]

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