发明授权
- 专利标题: Relay
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申请号: US33803640申请日: 1940-05-31
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公开(公告)号: US2237278A公开(公告)日: 1941-04-01
- 发明人: WILLING JOSEPH E
- 申请人: GEN RAILWAY SIGNAL CO
- 专利权人: Gen Railway Signal Co
- 当前专利权人: Gen Railway Signal Co
- 优先权: US33803640 1940-05-31
- 主分类号: H01H50/38
- IPC分类号: H01H50/38
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