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US Patent: 844,157
Drafting Instrument
Patentee: Leroy R. Loughborough (exact or similar names) - Rochester, Monroe County, NY USPTO Classifications: 33/27.03, 33/474 Tool Categories: layout tools : squares trade specific : draftsman Assignees: None Manufacturer: Not known to have been produced Witnesses: G. B. Loughborough C. H. Van Nest Robert Weitknecht Louis W. Gratz	Patent Dates: Applied: Feb. 20, 1905 Granted: Feb. 12, 1907 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Geyer & Popp, patent attorneys.

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