发明授权
- 专利标题: Automatic reciprocating electromagnetic motor.
- 专利标题(中): 自动电动马达。
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申请号: US1911637247申请日: 1911-07-07
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公开(公告)号: US1120414A公开(公告)日: 1914-12-08
- 发明人: SCHOOLFIELD FREDERICK E , OWEN JOHN C
- 申请人: SCHOOLFIELD FREDERICK E , OWEN JOHN C
- 专利权人: Frederick E Schoolfield,John C Owen
- 当前专利权人: Frederick E Schoolfield,John C Owen
- 优先权: US1911637247 1911-07-07
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