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公开(公告)号：US1570189A
公开(公告)日：1926-01-19
申请号：US75657924
申请日：1924-12-17
Applicant: SIMON STURM JOHN
Inventor： SIMON STURM JOHN
IPC: B25G3/38
CPC classification number: B25G3/38 , Y10T403/32327
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