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公开(公告)号:US2793253A
公开(公告)日:1957-05-21
申请号:US19109950
申请日:1950-10-20
申请人: BROOKS WINFIELD S , MURPHY JAMES P , HOWEY EDWIN M
发明人: BROOKS WINFIELD S , MURPHY JAMES P , HOWEY EDWIN M
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公开(公告)号:US2699720A
公开(公告)日:1955-01-18
申请号:US15563350
申请日:1950-04-13
申请人: BROOKS WINFIELD S , MURPHY JAMES P , HOWEY EDWIN M
发明人: BROOKS WINFIELD S , MURPHY JAMES P , HOWEY EDWIN M
IPC分类号: B41C1/04
CPC分类号: B41C1/04
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