Patent information:

Patent:Utility 897,669
Patented:September 1, 1908
Applied:January 3, 1906
Title:Insulator
Description:Knob - self-tying
Category:Knob
Assigned to: 

Patentee Information:

SIEGWART, Frank J. Pittsburg, PA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:175INSULATORS With conductor holding means Insulator structure Self-retaining;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:166RINSULATORS With insulator-supporting or attaching means Support penetrating Through aperture, penetrating element clamped;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1