发明授权
- 专利标题: Rail-joint.
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申请号: US1908446441申请日: 1908-08-01
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公开(公告)号: US927393A公开(公告)日: 1909-07-06
- 发明人: WRIGHT WILLIAM
- 申请人: JOSEPH SCOURFIELD , WRIGHT WILLIAM
- 专利权人: Joseph Scourfield,William Wright
- 当前专利权人: Joseph Scourfield,William Wright
- 优先权: US1908446441 1908-08-01