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US Patent: 402,869
Sighting Attachment for Levels
Patentee: Justus A. Traut (exact or similar names) - New Britain, CT USPTO Classifications: 33/290 Tool Categories: layout tools : levels Assignees: The Stanley Rule & Level Co. - New Britain, CT Manufacturer: Not known to have been produced Witnesses: F. N. Stanley H. S. Walter	Patent Dates: Applied: Jan. 22, 1889 Granted: May 07, 1889 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin (dm)

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