Patent information:

Patent:Utility 838,163
Patented:December 11, 1906
Applied:October 24, 1905
Title:High Tension Insulator
Description:Multipart with multiple petticoats under skirts (M-4325C, M-4415, M-4600) (see ID 5166)
Category:Insulator
Assigned to: 

Patentee Information:

BAUM, Frank G. San Francisco, CA

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:169INSULATORS With conductor holding means Fitting or terminal type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:167INSULATORS With conductor receiving aperture or bushing type;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:209INSULATORS Sectional, multi-part, composite, or coated;

Known specimens:

Number:M 4325C
Number:M 4415
Number:M 4600

Drawings:

Drawing page 1

Page 1