Patent information:

Patent:Utility 1,127,042
Patented:February 2, 1915
Applied:March 9, 1909
Title:Manufacture of High Potential Porcelain and Glass Insulators
Description:Boro-silicate glass
Category:Boron
Assigned to: 

Patentee Information:

LOCKE, Fred M. Victor, NY

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:143CERAMIC COMPOSITIONS Clay containing (e.g., porcelain, earthenware, etc.) And flint or feldspar;

Known specimens:

Number:Specimen known