Patent information:

Patent:Utility 657,574
Patented:September 11, 1900
Applied:December 11, 1899
Title:High Voltage Insulator
Description:Heater (electric) imbedded in insulator body
Category:Heater
Assigned to: 

Patentee Information:

SINDING-LARSEN, Alf Frederiksvaern,, Norway

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:139INSULATORS Combined;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1