Patent information:

Patent:Utility 71,564
Patented:November 26, 1867
Applied:
Title:Improvement in Telegraph Insulators
Description:Metal shell lined with glass or porcelain with wooden pin and paraffin cavity
Category:Metal
Assigned to:2/3 to S. Porter & L. M. Monroe

Patentee Information:

WOOD, Merritt L. Ithaca, NY

Class and subclass information:

Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:199INSULATORS With terminal elements Pin type Expanded;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:165INSULATORS With insulator-supporting or attaching means Support penetrating Penetrating element socketed in insulator;

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1