Patent information:
| Patent: | Design 28,743 |
| Patented: | May 31, 1898 |
| Applied: | December 18, 1896 |
| Title: | Design for an Insulator Plate |
| Description: | Truncated triangular glass plate with three wiring knobs for arc lights |
| Category: | Misc |
| Assigned to: |
Patentee Information:
| MCDONALD, William B. | Chicago, IL |
Class and subclass information:
| Class: | D13 | EQUIPMENT FOR PRODUCTION, DISTRIBUTION, OR TRANSFORMATION OF ENERGY |
| Subclass: | 132 |
Known specimens:
| None known |
Drawings:
Page 1 |