Patent information:
| Patent: | Utility 1,451,815 |
| Patented: | April 17, 1923 |
| Applied: | December 27, 1920 |
| Title: | Rapid Decorating Firing Furnace or Kiln |
| Description: | Kiln for firing porcelain spark plug insulators |
| Category: | Manufacturing |
| Assigned to: | Jeffery-Dewitt Co. |
Patentee Information:
| DAVENPORT, Ransom W. | Detroit, MI |
Class and subclass information:
| Class: | 219 | ELECTRIC HEATING |
| Subclass: | 388 |
Known specimens:
| None known |
Drawings:
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