Patent information:

Patent:Utility 160,016
Patented:February 23, 1875
Applied:August 28, 1874
Title:Improvement in Paper Perforating Machines
Description:Machine for perforating paper glass etching patterns
Assigned to: 

Patentee Information:

HEMINGRAY, Robert Covington, KY

Class and subclass information:

Subclass:333CUTTING MOTION OF TOOL HAS COMPONENT IN DIRECTION OF MOVING WORK Orbital motion of cutting blade Rotary tool With undulant cutting edge (e.g., "pinking" tool);
Subclass:508ROTATABLE DISC TOOL PAIR OR TOOL AND CARRIER Tool pair comprises rotatable tool and nonrotatable tool;

Known specimens:

None known


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