Patent information:
| Patent: | Utility 856,801 |
| Patented: | June 11, 1907 |
| Applied: | January 29, 1906 |
| Title: | Insulator |
| Description: | Pin (metal) using spring for threads |
| Category: | Pin |
| Assigned to: | Peirce Specialty Co. |
Patentee Information:
| PEIRCE, JR., Charles L. | Chicago, IL |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 204 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; Sheet material thread; |
| Class: | 29 | METAL WORKING |
| Subclass: | 887 | METHOD OF MECHANICAL MANUFACTURE; Electrical device making; Insulator making; |
Known specimens:
| None known |
Drawings:
Page 1 |