E01B 3/20

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More Results

Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9644323 Train rail track structure systemsMar 03, 16May 09, 17Not available
9062419 Rail system for jacking towerMar 12, 13Jun 23, 15KONECRANES GLOBAL CORPORATION
4203549 Railway sleeperApr 04, 78May 20, 80Not available