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US Patent: 902,269
Spirit-Level
Patentee: John D. Weaver (exact or similar names) - Naples, IL USPTO Classifications: 33/383, 33/387 Tool Categories: layout tools : levels : inclinometers Assignees: None Manufacturer: J. D. Weaver - Jacksonville, IL Witnesses: Austin Turner John Haley R. L. Norton L. B. Baker	Patent Dates: Applied: May 29, 1908 Granted: Oct. 27, 1908 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This level features pivoting vials, allowing it to accurately measure any angle.

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