发明授权
- 专利标题: Ditch forming implement
- 专利标题(中): 沟渠成型工具
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申请号: US27596152申请日: 1952-03-11
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公开(公告)号: US2783557A公开(公告)日: 1957-03-05
- 发明人: BROWN CARNES GLADYS
- 申请人: JOSIE M BROWN , RUTH BROWN MCCLUNEY , MILDRED BROWN TURNS , GLADYS BROWN CARNES , CHARLES H BROWN JR , VIVIAN BROWN HAMILTON
- 专利权人: Josie M Brown,Ruth Brown Mccluney,Mildred Brown Turns,Carnes Gladys Brown,Charles H Brown Jr,Vivian Brown Hamilton
- 当前专利权人: Josie M Brown,Ruth Brown Mccluney,Mildred Brown Turns,Carnes Gladys Brown,Charles H Brown Jr,Vivian Brown Hamilton
- 优先权: US27596152 1952-03-11; US2791948 1948-05-19
- 主分类号: E02F5/02
- IPC分类号: E02F5/02
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