- 专利标题: Method of laying channel flaps
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申请号: US67880233申请日: 1933-07-03
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公开(公告)号: US2079705A公开(公告)日: 1937-05-11
- 发明人: HIRAM GORDON
- 申请人: WALKER T DICKERSON COMPANY
- 专利权人: Walker T Dickerson Company
- 当前专利权人: Walker T Dickerson Company
- 优先权: US67880233 1933-07-03
- 主分类号: A43B9/04
- IPC分类号: A43B9/04