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公开(公告)号：US2474147A
公开(公告)日：1949-06-21
申请号：US76954847
申请日：1947-08-19
Applicant: HILL JAMES E , AMBLER THOMAS M
Inventor： HILL JAMES E , AMBLER THOMAS M
IPC: A45D4/12
CPC classification number: A45D4/12
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