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US Patent: 1,002,149
Vernier Calipers
Patentee: Henri Hauser (exact or similar names) - Madretsch, Switzerland USPTO Classifications: 33/427, 33/810 Tool Categories: layout tools : calipers layout tools : measurement gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: Friedrich Schwoöer Christian Sommer E. M. Moore L. E. Barkley	Patent Dates: Applied: Jan. 28, 1910 Granted: Aug. 29, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: These calipers are designed to accurately measure dovetailed ways. It can measure the dovetail itself, or the slot it rides in.

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