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公开(公告)号：US896663A
公开(公告)日：1908-08-18
申请号：US1905279776
申请日：1905-09-23
Applicant: RAHM FRED
Inventor： RAHM FRED
CPC classification number: B23B31/201 , Y10T279/17547 , Y10T279/3431
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