Patent information:
| Patent: | Utility 158,868 |
| Patented: | January 19, 1875 |
| Applied: | January 16, 1874 |
| Title: | Improvement in Insulating Compounds |
| Description: | Hook with composition compound of shellac, asbestos, coal tar & oak black |
| Category: | Hook |
| Assigned to: | 1/2 to George A. Chapman |
Patentee Information:
| SMITH, Isaac | New York, NY |
Class and subclass information:
| Class: | 106 | COMPOSITIONS: COATING OR PLASTIC |
| Subclass: | 230 | COATING OR PLASTIC COMPOSITIONS; Natural resin or derivative containing; With wax; |
| Class: | 106 | COMPOSITIONS: COATING OR PLASTIC |
| Subclass: | 235 | COATING OR PLASTIC COMPOSITIONS; Natural resin or derivative containing; With bituminous material or tarry residue; With filler, dye or pigment; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 170 | INSULATORS; With conductor holding means; Fitting or terminal type; Hooks; |
Known specimens:
| Number: |  |
Drawings:
Page 1 |