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Early Patents


Pin Type Insulator Patents

Ramshorn Style Patents

Insulator Manufacturing Equipment Patents

Lightening Arrestor Insulator Patents

Miscellaneous Patents



All images collected for easy access courtesy of the government patent office. For complete documentation on a particular patent go Here . To view the .tif images you will need a plugin for your browser. Help and links available Here. If you see any errors or know of any glass insulator related patents missing please contact me at one of the two places below with the patent number.

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