Patent information:

Patent:Utility 400,464
Patented:April 2, 1889
Applied:October 15, 1888
Title:Lightning Rod and Coupling
Description:Coupling burr with serrated ends that interlock with the rod sections
Category:Lightning Rod Coupling
Assigned to: 

Patentee Information:

LAWSHE, Spencer R. Chicago, IL

Class and subclass information:

Class:403JOINTS AND CONNECTIONS
Subclass:364INTERFITTED MEMBERS Interdigitated ends;
Class:15BRUSHING, SCRUBBING, AND GENERAL CLEANING
Subclass:145 

Known specimens:

None known

Drawings:

Drawing page 1

Page 1