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公开(公告)号:US2789854A
公开(公告)日:1957-04-23
申请号:US27584752
申请日:1952-03-10
Applicant: JAMES HOPE
Inventor: JAMES HOPE
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公开(公告)号:US2901796A
公开(公告)日:1959-09-01
申请号:US68652557
申请日:1957-09-26
Applicant: JAMES HOPE
Inventor: JAMES HOPE
IPC: A44B1/34
CPC classification number: A44B1/34 , Y10T24/366 , Y10T24/3683 , Y10T24/45953 , Y10T24/4621 , Y10T24/4696
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