ETS S.A., A SWISS CORP.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4927078 Device for elastically and rapidly fixing a railway railExpiredJul 29, 88May 22, 90[E01B]
4431314 Presettable digital time-piece display systemExpiredApr 26, 82Feb 14, 84[G04C]
4428858 Composition based on liquid crystal for electro-optical deviceExpiredSep 11, 80Jan 31, 84[C09K, G02F]
4423928 Liquid crystal display deviceExpiredDec 03, 80Jan 03, 84[G02F]
4412215 Novel control means for an electrochromic displayExpiredMar 11, 82Oct 25, 83[G09G]
4398831 Electronic watchExpiredFeb 25, 82Aug 16, 83[G04B, G04C]
4392720 Electrochromic display cellExpiredNov 28, 80Jul 12, 83[G02F]
4384232 Grooved-electrode piezoelectric resonatorExpiredOct 10, 80May 17, 83[H01L]
4382690 Ultra-flat electronic watchExpiredSep 06, 79May 10, 83[G04B]
4382692 Analog-display electronic timepiece comprising a divider with an adjustable division factorExpiredJul 15, 81May 10, 83[G04B, G04F]
4379244 Method of detection of the asymmetry of piezo-electric crystal resonators in the form of tuning forks and resonators for carrying it outExpiredOct 10, 80Apr 05, 83[H01L]
4376715 Composition based on liquid crystal for electro-optical deviceExpiredJul 25, 80Mar 15, 83[C09K, C07C]
4372689 Electronic watch movementExpiredOct 24, 80Feb 08, 83[G04B, G04C]
4371821 Electromagnetic motor rotatable in either directionExpiredJul 03, 80Feb 01, 83[G05B]
4367049 Driving device especially for a timepieceExpiredAug 31, 78Jan 04, 83[G04B]
4367050 Very thin electromechanical watchExpiredDec 12, 80Jan 04, 83[G04B, G04C]
4364669 Chronographic watchExpiredJan 19, 81Dec 21, 82[G04B, G04F]
4361790 Electromagnetic motor rotatable in either directionExpiredDec 16, 81Nov 30, 82[G05B]
4355380 Electronic timepiece with auxiliary digital displayExpiredJun 26, 80Oct 19, 82[G04B]
4320190 Method of manufacturing the substrate of an electrochromic display cellExpiredDec 04, 80Mar 16, 82[G03C, B44C]

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