Lescrenier; Charles

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5095386 Optical system for generating lines of light using crossed cylindrical lensesExpiredMay 01, 90Mar 10, 92[G02B]
5038260 Generator for generating one or more dots or lines of lightExpiredMay 31, 89Aug 06, 91[F21V]
4836671 Locating deviceExpiredJan 22, 88Jun 06, 89[A61B, G03B, G01C]
4730895 Fiber optic line generator suitable for use with incandescent light sourceExpiredAug 30, 82Mar 15, 88[G02B]
4618980 Exit beam indicator for radiographic equipmentExpiredSep 12, 84Oct 21, 86[A61B]
4502147 Means for visually indicating an X-ray fieldExpiredJan 18, 84Feb 26, 85[G21F, A61B]

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