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US Patent: 1,000,835
Calipers
Patentees: Stewart A. Minnick (exact or similar names) - Pittsburgh, PA Albert L. Smith (exact or similar names) - Pittsburgh, PA USPTO Classifications: 33/558.1 Tool Categories: layout tools : calipers Assignees: Stewart A. Minnick - Pittsburgh, PA Manufacturer: Not known to have been produced Witnesses: C. M. Clarke J. F. McKenna Chas. S. Lepley Henry Sino	Patent Dates: Applied: Apr. 23, 1910 Granted: Aug. 15, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: A different take on the by-now-standard split nut design for quick rough adjustment of the caliper legs.

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