HARTMANN FORDERTECHNIK GMBH

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
4585384 Multi-stage conveyor systemExpiredDec 28, 84Apr 29, 86[B65G]
4342162 Device for planing a body of ground materialExpiredJan 11, 80Aug 03, 82[E02F]
4266673 Apparatus for classifying dust materialsExpiredOct 19, 79May 12, 81[B07B]
4197938 Conveyor for bulk materialsExpiredDec 02, 75Apr 15, 80[B65G]

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