Invention Grant
US1211000A Apparatus for rendering a protective device responsive to phase relations.
失效
提出反应相关关系的保护性设备的设备。
- Patent Title: Apparatus for rendering a protective device responsive to phase relations.
- Patent Title (中): 提出反应相关关系的保护性设备的设备。
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Application No.: US8162616Application Date: 1916-03-02
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Publication No.: US1211000APublication Date: 1917-01-02
- Inventor: SPRONG SEVERN D , MCCOY WALTER E
- Applicant: SPRONG SEVERN D , MCCOY WALTER E
- Assignee: Severn D Sprong,Walter E Mccoy
- Current Assignee: Severn D Sprong,Walter E Mccoy
- Priority: US8162616 1916-03-02
- Main IPC: H01L21/60
- IPC: H01L21/60
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