Invention Grant
- Patent Title: Coil for electromagnets.
- Patent Title (中): 电磁线圈
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Application No.: US1899738637Application Date: 1899-11-29
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Publication No.: US664442APublication Date: 1900-12-25
- Inventor: SPRONG SEVERN D
- Applicant: CHARLES GETTER , WILLIAM P ADAMS , SPRONG SEVERN D
- Assignee: Charles Getter,William P Adams,Severn D Sprong
- Current Assignee: Charles Getter,William P Adams,Severn D Sprong
- Priority: US1899738637 1899-11-29
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