Invention Grant
- Patent Title: Electric bell.
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Application No.: US1905293292Application Date: 1905-12-26
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Publication No.: US835199APublication Date: 1906-11-06
- Inventor: PROCTOR CHARLES M
- Applicant: P R MFG COMPANY
- Assignee: P R Mfg Company
- Current Assignee: P R Mfg Company
- Priority: US1905293292 1905-12-26
Information query
