Fagersta AB

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
D273680 Roller bitExpiredApr 27, 81May 01, 84[]
4426037 Boiler for a heating system, as an article of manufacture, a boiler-heating system combination, and a method for heating a heat-transfer medium such as water in a heating systemExpiredMay 13, 82Jan 17, 84[F24H, F24D]
4415119 BoilerExpiredApr 21, 82Nov 15, 83[F24D, F22B]
D266521 Shank adapter for a rock drilling machineExpiredApr 29, 80Oct 12, 82[D150]
4296830 Product provided with sound damping elementExpiredJul 10, 79Oct 27, 81[F16F]
4222773 Corrosion resistant austenitic stainless steel containing 0.1 to 0.3 percent manganeseExpiredMay 29, 79Sep 16, 80[C22C]

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