Invention Grant
- Patent Title: Bell-shaped magnet
- Patent Title (中): 钟形磁铁
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Application No.: US59440322Application Date: 1922-10-13
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Publication No.: US1504159APublication Date: 1924-08-05
- Inventor: HERMANN STEINHART
- Applicant: BOSCH ROBERT
- Assignee: Bosch Robert
- Current Assignee: Bosch Robert
- Priority: US59440322 1922-10-13
- Main IPC: H02K21/34
- IPC: H02K21/34
Information query
