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US Patent: 1,413,056
Adjustable Plumb and Level
Patentees: George L. Parrish (exact or similar names) - Columbus, OH Charley L. Cooley (exact or similar names) - Columbus, OH USPTO Classifications: 33/374 Tool Categories: layout tools : levels Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 16, 1921 Granted: Apr. 18, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This level can "telescope" to make it longer or shorter, while still maintaining the proper adjustment.

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