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US Patent: 505,870
Truing Up Indicator
Patentee:
Frank R. Young (exact or similar names) - Hartford, Hartford County, CT

USPTO Classifications:
33/543, 33/642, 73/487

Tool Categories:
metalworking tools : machinist tools : measuring tools : test indicators
metalworking machines : metal lathes : metal lathe accessories and attachments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jan. 12, 1893
Granted: Oct. 03, 1893

Patent Pictures:
USPTO (New site tip)
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