发明授权
- 专利标题: Recording device for concrete mixing drums
- 专利标题(中): 混凝土搅拌桶记录装置
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申请号: US26993852申请日: 1952-02-05
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公开(公告)号: US2658731A公开(公告)日: 1953-11-10
- 发明人: OSBORNE RAYMOND G , BOYKIN ROBERT O
- 申请人: RAYMOND G OSBORNE , RAYMOND G OSBORNE JR , HOWARD S OSBORNE , PHILIP S OSBORNE
- 专利权人: Raymond G Osborne,Raymond G Osborne Jr,Howard S Osborne,Philip S Osborne
- 当前专利权人: Raymond G Osborne,Raymond G Osborne Jr,Howard S Osborne,Philip S Osborne
- 优先权: US26993852 1952-02-05
- 主分类号: B28C5/42
- IPC分类号: B28C5/42 ; B28C7/02 ; G07C3/12
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