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US Patent: 297,056
Caliper Rule
Patentee: Stephen H. Bellows (exact or similar names) - Athol, MA USPTO Classifications: 269/203, 33/810 Tool Categories: rules layout tools : measurement gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: Andrew J. Hamilton Charles O. Stone	Patent Dates: Applied: Feb. 16, 1884 Granted: Apr. 15, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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