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US Patent: 761,381
Surface Gage
Patentee: Henry J. Hjorth (exact or similar names) - Cambridge, MA USPTO Classifications: 33/32.2 Tool Categories: layout tools : measurement gauges : surface gauges Assignees: Thomas E. O'Brien - Watertown, MA Joseph F. Eaton - Boston, MA Manufacturer: Hjorth Lathe & Tool Co. - Boston, MA Witnesses: Edward E. Bartlett Alzada E. Bartlett	Patent Dates: Applied: Oct. 10, 1903 Granted: May 31, 1904 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hjorth Lathe & Tool Co.

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