- 专利标题: Brake mechanism for railway cars
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申请号: US22382727申请日: 1927-10-03
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公开(公告)号: US1724512A公开(公告)日: 1929-08-13
- 发明人: PIETZSCH FRANK H
- 申请人: RAILWAY DEVICES CO
- 专利权人: Railway Devices Co
- 当前专利权人: Railway Devices Co
- 优先权: US22382727 1927-10-03
- 主分类号: B61H13/02
- IPC分类号: B61H13/02