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US Patent: 480,607
Circumference Indicator and Tire Gage
Patentee:
Peter McCallum (exact or similar names) - St. Paul, Ramsey County, MN

USPTO Classifications:
33/772

Tool Categories:
metalworking tools : machinist tools : measuring tools : test indicator holders

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 08, 1892
Granted: Aug. 09, 1892

Patent Pictures:
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