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公开(公告)号：US2105435A
公开(公告)日：1938-01-11
申请号：US72878334
申请日：1934-06-02
Applicant: ERNEST WATKINS , TANNER JESSIE M
Inventor： ERNEST WATKINS , TANNER JESSIE M
IPC: F17D1/05
CPC classification number: F17D1/05
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