Patent information:
| Patent: | Design 115,530 |
| Patented: | July 4, 1939 |
| Applied: | January 21, 1939 |
| Title: | Design for a Porcelain Insulator |
| Description: | Fence knob (Wisconsin Porcelain Co. president) |
| Category: | Knob |
| Assigned to: | Wisconsin Porcelain Co. |
Patentee Information:
| STOHL, Ludwig A. | Sun Prairie, WI |
Class and subclass information:
| Class: | D13 | EQUIPMENT FOR PRODUCTION, DISTRIBUTION, OR TRANSFORMATION OF ENERGY |
| Subclass: | 130 |
Known specimens:
| Number: |  |
Drawings:
Page 1 |