Patent information:
Patent: | Utility 194,220 |
Patented: | August 14, 1877 |
Applied: | May 29, 1877 |
Title: | Improvement in Lightning Rods and Insulators |
Description: | CD 317 lightning rod insulator and spiral lightning rod |
Category: | Insulator |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 4R | AIR TERMINALS; |
Known specimens:
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Drawings:
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