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US Patent: 503,238
Watch Makers Gage
Patentee:
Joshua Doughty Howell (exact or similar names) - Livonia, Livingston County, NY

USPTO Classifications:
33/567

Tool Categories:
trade specific : watchmaker

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Aug. 29, 1892
Granted: Aug. 15, 1893

Patent Pictures:
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