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公开(公告)号：US2090763A
公开(公告)日：1937-08-24
申请号：US7749336
申请日：1936-05-02
Applicant: CHARLES E WATTS
Inventor： HENRY MERCER JAMES , JACK JONES
IPC: A43C15/06
CPC classification number: A43C15/06
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