Patent information:

Patent:Utility 1,029,980
Patented:June 18, 1912
Applied:December 23, 1911
Title:Insulator
Description:Knob - self-tying (see reissue 13,748 on 6-16-1914)
Category:Knob
Assigned to: 

Patentee Information:

ELLIS, John Salem, MO

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:175INSULATORS With conductor holding means Insulator structure Self-retaining;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1