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公开(公告)号:US2148418A
公开(公告)日:1939-02-21
申请号:US18108337
申请日:1937-12-22
申请人: LEON DEWAN , JOHN BARTHO , JOSEPH R WREN , FRANK CONLAN , HERBERT C ROEMER , HAMILTON E SMITH , JOHN J O BRIEN , JAMES H WREN
发明人: WREN JOSEPH R , JOHN BARTHO
IPC分类号: A63C17/14
CPC分类号: A63C17/14
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公开(公告)号:US2148417A
公开(公告)日:1939-02-21
申请号:US16271637
申请日:1937-09-07
申请人: LEON DEWAN , JOHN BARTHO , JOSEPH R WREN , FRANK CONLAN , HERBERT C ROEMER , HAMILTON E SMITH , JOHN J O BRIEN , JAMES H WREN
发明人: LEON DEWAN , JOHN BARTHO
IPC分类号: A63C17/14
CPC分类号: A63C17/14
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