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US Patent: 685,634
Combined Slide Gage and Try Square
Patentees: Julius C. Opland (exact or similar names) - Calumet, MI Frank Olson (exact or similar names) - Calumet, MI USPTO Classifications: 33/42, 33/427 Tool Categories: layout tools : squares layout tools : marking gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: M. A. Leonard Geo. E. Frech Francis Ward Albert J. March	Patent Dates: Applied: Jul. 03, 1901 Granted: Oct. 29, 1901 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: An interesting tool that looks like a machinist's combination square turned into a combination square and marking gage.

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