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公开(公告)号：US2739819A
公开(公告)日：1956-03-27
申请号：US38481153
申请日：1953-10-08
Applicant: MAX M YAFFE , HAROLD BLUMBERG , THOMAS THOMPSON JR , THOMAS THOMPSON SR
Inventor： ARTHUR STONER CLAIR
IPC: A63C17/02
CPC classification number: A63C17/02
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