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US Patent: D3,603
Design for a grinding-machine
Patentee:
Thomas H. Worrall - East Blackstone, MA

USPTO Classifications:
D15/124

Tool Categories:
metalworking machines : grinders : sharpening machines : bench or pedestal grinders

Assignees:
American Twist Drill Co. - East Blackstone, MA

Manufacturer:
American Twist Drill Co. - Woonsocket, RI

Witnesses:
George A. Wilbur
William H. Jenckes

Patent Dates:
Granted: Aug. 03, 1869

Patent Pictures:
USPTO pdf tiff
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