Patent information:
Patent: | Utility 1,120,951 |
Patented: | December 15, 1914 |
Applied: | March 9, 1909 |
Title: | Manufacture of Insulators for High Potential Electric Conductors |
Description: | Boron used in porcelain insulators |
Category: | Boron |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 501 | COMPOSITIONS: CERAMIC |
Subclass: | 141 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); |
Known specimens:
Number: | |
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