Invention Grant
- Patent Title: Fire-door-releasing device.
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Application No.: US1906305553Application Date: 1906-03-12
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Publication No.: US840701APublication Date: 1907-01-08
- Inventor: LAMAREAUX CORWIN
- Applicant: RICHARDS MFG COMPANY
- Assignee: Richards Mfg Company
- Current Assignee: Richards Mfg Company
- Priority: US1906305553 1906-03-12
Information query
