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US Patent: 945,573
Can-testing machine
Patentees:
Charles D. McDonald (exact or similar names) - Chicago, IL
Charles B. McDonald (exact or similar names) - Chicago, IL

USPTO Classifications:
73/45.1

Tool Categories:
specialty machines : can making machines

Assignees:
McDonald Machine Co. - Chicago, IL

Manufacturer:
Not known to have been produced

Witnesses:
Walker Banning
Samuel W. Banning

Patent Dates:
Applied: Oct. 27, 1908
Granted: Jan. 04, 1910

Patent Pictures:
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