Invention Grant
- Patent Title: Furnace
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Application No.: US37932020Application Date: 1920-05-06
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Publication No.: US1399638APublication Date: 1921-12-06
- Inventor: RICHARD MARX
- Applicant: RICHARD MARX
- Assignee: Marx Richard
- Current Assignee: Marx Richard
- Priority: US37932020 1920-05-06
- Main IPC: C21D9/00
- IPC: C21D9/00
Information query
