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US Patent: 436,842
Parallel Ruler
Patentee: Burnside E. Sawyer (exact or similar names) - Athol, MA USPTO Classifications: 33/438 Tool Categories: layout tools : squares : try squares layout tools : protractors Assignees: None Manufacturer: Not known to have been produced Witnesses: Henry H. Kendall N. C. Lombard	Patent Dates: Applied: Jun. 11, 1890 Granted: Sep. 23, 1890 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: This Patent was improved with Patent # 467,664.

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