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US Patent: 789,520
Automatic prick-punch
Patentees:
John L. Baltzer - Athol, MA
John A. Adell - Athol, MA

USPTO Classifications:
30/367, 433/151, 81/44

Tool Categories:
punches

Assignees:
L. S. Starrett Co. - Athol, MA

Manufacturer:
Not known to have been produced

Witnesses:
Frank E. Wing
L. S. Starrett

Patent Dates:
Applied: Mar. 23, 1905
Granted: May 09, 1905

Patent Pictures:
USPTO pdf tiff
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