Riccar Co., Ltd.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4467162 Exciting arrangement for induction heating processExpiredNov 28, 83Aug 21, 84[H05B]
4430542 Electromagnetic cooking apparatusExpiredSep 11, 81Feb 07, 84[H02M, H05B]
4417531 Sewing machine with electronic controlled stitch pattern generatorExpiredFeb 23, 79Nov 29, 83[D05B]
4351996 Induction heating apparatus with thermistor and magnetic sensorExpiredJan 28, 81Sep 28, 82[H05B]
4258638 Electromagnetic control device for sewing machineExpiredMay 07, 79Mar 31, 81[D05B]

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