Invention Grant
- Patent Title: Pair-heating-furnace hearth.
- Patent Title (中): 配对加热炉。
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Application No.: US1910593545Application Date: 1910-11-21
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Publication No.: US1034858APublication Date: 1912-08-06
- Inventor: ALLIS THOMAS V
- Applicant: ALLIS THOMAS V
- Assignee: Thomas V Allis
- Current Assignee: Thomas V Allis
- Priority: US1910593545 1910-11-21
Information query
