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1.发明授权
公开(公告)号：US1739086A
公开(公告)日：1929-12-10
申请号：US28898428
申请日：1928-06-28
Applicant: ARTHUR PASS
Inventor： ARTHUR PASS
IPC: B24B13/04
CPC classification number: B24B13/04
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公开(公告)号：US1410033A
公开(公告)日：1922-03-21
申请号：US52543921
申请日：1921-12-28
Applicant: ARTHUR PASS
Inventor： ARTHUR PASS
IPC: E05B37/02
CPC classification number: E05B37/02 , Y10S70/26 , Y10T70/7305 , Y10T70/7328 , Y10T70/7333
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