T. J. Gundlach Machine Company

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5249750 Traversing roll breaker apparatusExpiredMar 13, 91Oct 05, 93[B02C]
5090574 Auto tramp removal systemExpiredAug 20, 90Feb 25, 92[B07C]
4807820 Segmental shell for a coal crusher rollExpiredAug 11, 86Feb 28, 89[B02C]
4630781 Apparatus and method for removing crushing rolls from a crushing apparatusExpiredJul 11, 84Dec 23, 86[B02C]
4617709 Segmental shell for a coal crusher roll including specialized removal meansExpiredMar 05, 84Oct 21, 86[B21B]

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