发明授权
- 专利标题: Magnetic speedometer.
-
申请号: US1911644732申请日: 1911-08-18
-
公开(公告)号: US1054996A公开(公告)日: 1913-03-04
- 发明人: STEWART JOHN K
- 申请人: STEWART WARNER SPEEDOMETER
- 专利权人: Stewart Warner Speedometer
- 当前专利权人: Stewart Warner Speedometer
- 优先权: US1911644732 1911-08-18