发明授权
- 专利标题: Trolley.
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申请号: US1907401269申请日: 1907-11-08
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公开(公告)号: US932538A公开(公告)日: 1909-08-31
- 发明人: DAVIS HARRY P , VARNEY THEODORE
- 申请人: WESTINGHOUSE ELECTRIC & MFG CO
- 专利权人: Westinghouse Electric & Mfg Co
- 当前专利权人: Westinghouse Electric & Mfg Co
- 优先权: US1907401269 1907-11-08