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US Patent: 846,349
Door Gage
Patentee: Joseph T. Root (exact or similar names) - Boston, MA USPTO Classifications: 33/44 Tool Categories: layout tools : marking gauges layout tools : marking gauges : butt gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: Howard Hanscom Nathan C. Lombard Edna C. Cleveland Walter E. Lombard	Patent Dates: Applied: Oct. 29, 1906 Granted: Mar. 05, 1907 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This tool handles all of the marking required for door hanging-- the hinge, lock, and strike mortises. It also provides a standard wheeled gage for general marking.

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