Patent information:

Patent:Utility 158,868
Patented:January 19, 1875
Applied:January 16, 1874
Title:Improvement in Insulating Compounds
Description:Hook with composition compound of shellac, asbestos, coal tar & oak black
Category:Hook
Assigned to:1/2 to George A. Chapman

Patentee Information:

SMITH, Isaac New York, NY

Class and subclass information:

Class:106COMPOSITIONS: COATING OR PLASTIC
Subclass:230COATING OR PLASTIC COMPOSITIONS Natural resin or derivative containing With wax;
Class:106COMPOSITIONS: COATING OR PLASTIC
Subclass:235COATING OR PLASTIC COMPOSITIONS Natural resin or derivative containing With bituminous material or tarry residue With filler, dye or pigment;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:170INSULATORS With conductor holding means Fitting or terminal type Hooks;

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1