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:

LOCKE, Fred M. Victor, NY

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:141CERAMIC COMPOSITIONS Clay containing (e.g., porcelain, earthenware, etc.);

Known specimens:

Number:Specimen known