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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