Patent information:
| Patent: | Design 53,522 |
| Patented: | July 8, 1919 |
| Applied: | March 13, 1918 |
| Title: | Design for an Insulator |
| Description: | Strain |
| Category: | Strain |
| Assigned to: | 1/2 to Hubbard & Co. |
Patentee Information:
| PIERCE, JR., Charles L. | Pittsburg, PA |
Class and subclass information:
| Class: | D13 | EQUIPMENT FOR PRODUCTION, DISTRIBUTION, OR TRANSFORMATION OF ENERGY |
| Subclass: | 132 |
Known specimens:
| Number: |  |
Drawings:
Page 1 |