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公开(公告)号：US1784029A
公开(公告)日：1930-12-09
申请号：US42451730
申请日：1930-01-30
Applicant: RAILWAY METAL PRODUCTS COMPANY
Inventor： SISSON VINTON E
IPC: E05D15/06
CPC classification number: E05D15/066 , E05Y2201/638 , E05Y2201/688 , E05Y2201/706 , E05Y2600/20 , E05Y2600/33 , Y10S16/34 , Y10T16/373 , Y10T16/3834 , Y10T279/14 , Y10T403/68
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