Patent information:

Patent:Utility 108,408
Patented:October 18, 1870
Applied:
Title:Improvement in Cutting and Engraving Stone, Metal, Glass &c.
Description:Method of sandblashing to cut or engrave
Category:Engraving
Assigned to: 

Patentee Information:

TILGHMAN, Benjamin C. Philadelphia, PA

Class and subclass information:

Class:451ABRADING
Subclass:91 
Class:125STONE WORKING
Subclass:2 
Class:451ABRADING
Subclass:102 
Class:451ABRADING
Subclass:40 
Class:51ABRASIVE TOOL MAKING PROCESS, MATERIAL, OR COMPOSITION
Subclass:309 

Known specimens:

None known

Drawings:

Drawing page 1

Page 1