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公开(公告)号：US2210989A
公开(公告)日：1940-08-13
申请号：US17520737
申请日：1937-11-18
Applicant: STANDARD PRESSED STEEL CO
Inventor： DUNCAN SUTHERLAND ARTHUR
IPC: E05B65/20
CPC classification number: E05B83/36 , Y10S292/40 , Y10T292/0811 , Y10T292/0854 , Y10T292/14 , Y10T292/691
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