发明授权
- 专利标题: Nut-locking device.
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申请号: US1909521198申请日: 1909-10-06
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公开(公告)号: US1028859A公开(公告)日: 1912-06-11
- 发明人: BULLARD JAMES H , BULLARD EDWIN W
- 申请人: UNITED NUT LOCK COMPANY
- 专利权人: United Nut Lock Company
- 当前专利权人: United Nut Lock Company
- 优先权: US1909521198 1909-10-06