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US Patent: 143,584
Improvement in Calipers
Patentee: William H. Miner (exact or similar names) - Boston, MA USPTO Classifications: 33/558.01 Tool Categories: layout tools : calipers Assignees: None Manufacturer: Not known to have been produced Witnesses: R. H. Eddy J. R. Snow S. W. Oper L. N. Boller	Patent Dates: Applied: Aug. 13, 1873 Granted: Oct. 14, 1873 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: These calipers use an eccentric cam for fine adjustment.

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