Isotopen-Technik Dr. Sauerwein GmbH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5120973 Method and device for inserting a radioactive radiation source into an applicator and withdrawing it therefromExpiredMay 01, 91Jun 09, 92[G21G]
5080103 Syringe for Doppler sonographically aided penetrationExpiredMar 21, 90Jan 14, 92[A61B]
5080278 Process and apparatus for sealing a metallic capsule and welding it to a metal cableExpiredFeb 12, 91Jan 14, 92[B23K]
5047851 Process and device for detecting and evaluating surface cracks in workpiecesExpiredFeb 26, 90Sep 10, 91[H04N]
4975934 Process and device for producing a radiographic imageExpiredJan 17, 89Dec 04, 90[G01N]
4940452 Magnetic couplingExpiredAug 16, 88Jul 10, 90[A61N, A61M]
4692628 Pipeline switchExpiredOct 30, 85Sep 08, 87[G21F]
4220864 Radiographic apparatusExpiredJun 13, 78Sep 02, 80[G21F]

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