Patent information:

Patent:Utility 315,660
Patented:April 14, 1885
Applied:January 21, 1883
Title:Supporting Insulator for Telegraph Wires
Description:Self-tying screw top (see 1,305,168)
Category:Self-tying Screw Top
Assigned to: 

Patentee Information:

PRENZEL, Henry Philadelphia, PA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:156INSULATORS Divided insulator;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1