Patent information:

Patent:Utility 1,572,730
Patented:February 9, 1926
Applied:October 17, 1924
Title:Batch for Making Ceramic Material and to a Ceramic Material Made Therefrom
Description:Porcelain composition for insulator using manganese
Assigned to: 

Patentee Information:

LOCKE, Fred M. Victor, NY
LOCKE, Fred J. Victor, NY

Class and subclass information:

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

Known specimens:

None known