Patent information:

Patent:Utility 664,176
Patented:December 18, 1900
Applied:July 25, 1900
Title:Electric Insulator
Description:Knob - self-tying via screw cap
Category:Knob
Assigned to: 

Patentee Information:

RISLER, Emil Freiburg, Baden, Germany

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:156INSULATORS Divided insulator;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:159INSULATORS With insulator-supporting or attaching means Insulated nail or staple type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:165INSULATORS With insulator-supporting or attaching means Support penetrating Penetrating element socketed in insulator;
Class:256FENCES
Subclass:54WIRE Connections Cross Clamp;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1