Patent information:

Patent:Utility 132,215
Patented:October 15, 1872
Applied:
Title:Improvement in Formers for Segmentally Screw Threaded Insulators
Description:Plunger to form segmented threads
Category:Plunger
Assigned to: 

Patentee Information:

OAKMAN, Samuel Boston, MA

Class and subclass information:

Class:249STATIC MOLDS
Subclass:59FORMING HELICAL OR THREADED PRODUCT;
Class:249STATIC MOLDS
Subclass:63MOLD INCLUDING CORE AND MEANS TO REMOVE CORE;

Known specimens:

Number:Specimen known

Drawings:

Drawing page 1

Page 1