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US Patent: 1,480,390
Apparatus for Inspecting and Gauging Screw Threads
Patentee: James Hartness (exact or similar names) - Springfield, Windsor County, VT USPTO Classifications: 33/199B, 33/547, 356/393, 356/397 Tool Categories: Assignees: None Manufacturer: Jones & Lamson Machine Co. - Springfield, Windsor County, VT Witnesses: Unknown	Patent Dates: Applied: Feb. 17, 1920 Granted: Jan. 08, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Jones, Lamson & Co.

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