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US Patent: 1,539,543
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Patentee: Robert A. Cecchini (exact or similar names) - Springfield, Hampden County, MA USPTO Classifications: 33/387, 33/828 Tool Categories: layout tools : levels : inclinometers Assignees: Robert A. Cecchini - Springfield, Hampden County, MA George R. Cronin - Springfield, Hampden County, MA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Oct. 25, 1922 Granted: May 26, 1925 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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