发明授权
- 专利标题: Automatic wagon-brake.
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申请号: US1899725012申请日: 1899-07-24
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公开(公告)号: US643024A公开(公告)日: 1900-02-06
- 发明人: WOOD WILLIAM INGHAM , BARNES WILLIAM M
- 申请人: WOOD WILLIAM INGHAM , BARNES WILLIAM M
- 专利权人: William Ingham Wood,William M Barnes
- 当前专利权人: William Ingham Wood,William M Barnes
- 优先权: US1899725012 1899-07-24
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