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US Patent: 1,235,216
Sectional scroll-edged shearing-die
Patentee:
Charles D. McDonald (exact or similar names) - Chicago, IL

USPTO Classifications:
122/65, 69/11, 83/682, 83/690

Tool Categories:

Assignees:
McDonald Machine Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Oct. 09, 1916
Granted: Jul. 31, 1917

Patent Pictures:
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