PWA Ortmann Aktiengesellschaft

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5199987 Method of producing cement clinkerExpiredDec 02, 91Apr 06, 93[C04B]
4540091 Foil package for paper handkerchiefs or tissuesExpiredJul 13, 83Sep 10, 85[B65D]

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