BERTIN & CIE, B.P. N 3 78373 PLAISIR CEDEX

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5138798 Method and apparatus for polishing an optical componentExpiredDec 04, 89Aug 18, 92[B24B]
4867565 Opto-electronic detection device for remotely detecting a physical magnitudeExpiredNov 12, 87Sep 19, 89[G01B]
4847509 Method and apparatus for measuring the diameter of a running elongate object such as an optical fiberExpiredNov 12, 87Jul 11, 89[G01N, G01B]
4836674 Method and apparatus for determining color, in particular of a dental prosthesisExpiredAug 13, 87Jun 06, 89[G01J]
4814604 Opto-electronic method and system for remote detection of physical magnitudesExpiredNov 12, 87Mar 21, 89[H01J, G01J]
4758085 Optical fiber spectrometer/colorimeter apparatusExpiredJun 09, 87Jul 19, 88[G01J]
4670638 Method and device for displacing the impact point of a laser beam on a partExpiredSep 30, 86Jun 02, 87[B23K]
4643021 Method and apparatus for measuring the rheological characteristics of a fluid, in particular of a biological fluid such as bloodExpiredOct 22, 85Feb 17, 87[G01N]
4473934 Method for extracting packing rings from a stuffing-box using a liquid jetExpiredNov 18, 81Oct 02, 84[B23B]

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