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公开(公告)号：US1180474A
公开(公告)日：1916-04-25
申请号：US1912728804
申请日：1912-10-31
Applicant: ACME SUPPLY COMPANY
Inventor： CONWELL WALTER L
CPC classification number: E05B85/24 , Y10S292/20 , Y10T292/1056
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