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公开(公告)号：US1471938A
公开(公告)日：1923-10-23
申请号：US58090622
申请日：1922-08-10
Applicant: CHARLES BONHAM
Inventor： CHARLES BONHAM
IPC: E05D13/00
CPC classification number: E05D13/10 , E05Y2201/654 , E05Y2600/46 , Y10T16/65 , Y10T24/398
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