Patent information:

Patent:Utility 1,390,118
Patented:September 6, 1921
Applied:June 16, 1919
Title:Insulator
Description:Knob
Category:Knob
Assigned to: 

Patentee Information:

FRIDRICHSEN, Peter Christian Carl Wheeling, WV

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:157INSULATORS Divided insulator Aligned through aperture;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1