Patent information:
| Patent: | Utility 700,463 |
| Patented: | May 20, 1902 |
| Applied: | January 20, 1902 |
| Title: | Insulator for Electric Circuits |
| Description: | CD 301, CD 321 & U-938 (Strengthening ribs skirt to petticoat) |
| Category: | Insulator |
| Assigned to: |
Patentee Information:
| WALTHER, William J. | Boston, MA |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 212 | INSULATORS; Surface configuration; |
| Class: | D13 | EQUIPMENT FOR PRODUCTION, DISTRIBUTION, OR TRANSFORMATION OF ENERGY |
| Subclass: | 130 |
Known specimens:
| Number: | CD 301 |
| Number: | CD 321 |
| Number: | U 938 |
Drawings:
Page 1 |