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US Patent: 1,516,631
Sliding Caliper
Patentee: Joseph ďAutemarre ďErvillé (exact or similar names) - Charenton, Val-de-Marne Department, Île-de-France France USPTO Classifications: 33/810 Tool Categories: metalworking tools : machinist tools : measuring tools : measuring calipers Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Jan. 12, 1922 Granted: Nov. 25, 1924 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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