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US Patent: 3,370,478
Gear train error compensator for dial indicators and the like
Patentee: Louis D. Martin (exact or similar names) - Burbank, CA USPTO Classifications: 74/395, 74/409, 74/422 Tool Categories: Assignees: B. C. Ames Co. - Waltham, MA Manufacturer: B. C. Ames Co. - Waltham, MA Witnesses: Unknown	Patent Dates: Applied: Aug. 09, 1966 Granted: Feb. 27, 1968 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for B. C. Ames Co.

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