Patent information:
Patent: | Utility 75,889 |
Patented: | March 24, 1868 |
Applied: | |
Title: | Improvement in Telegraph Insulators |
Description: | Hook with metal case secured to crossarm (see reissue 75,889) |
Category: | Hook |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 361 | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
Subclass: | 117 | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES; High voltage dissipation (e.g., lightning arrester); |
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 140H | INSULATORS; Combined; With conductive arcing or stress distributing means; Hood type; |
Known specimens:
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Drawings:
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