Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07/661,495 Inventor Maurice Deul Current Assignee (The listed assignees may be inaccurate. Google Patents Mine cribbing device and methodÄownload PDF Info Publication number US5143484A US5143484A US07/661,495 US66149591A US5143484A US 5143484 A US5143484 A US 5143484A US 66149591 A US66149591 A US 66149591A US 5143484 A US5143484 A US 5143484A Authority US United States Prior art keywords concrete crib roof motor vehicle members Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. ![]() Google Patents US5143484A - Mine cribbing device and method ![]() ![]() US5143484A - Mine cribbing device and method
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