Patent information:

Patent:Utility 1,020,880
Patented:March 19, 1912
Applied:July 26, 1910
Title:Insulator
Description:Self-tying screw top
Category:Self-tying Screw Top
Assigned to: 

Patentee Information:

BOURKE, Alexander M. Maitland, New South Wales, Australia

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:158RINSULATORS With insulator-supporting or attaching means;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:156INSULATORS Divided insulator;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:168INSULATORS With conductor holding means;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1