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US Patent: 1,241,399
Level
Patentee: Ernest A. King (exact or similar names) - Philadelphia, PA USPTO Classifications: 33/383, 33/385 Tool Categories: layout tools : levels : wooden levels Assignees: Henry Disston & Sons, Inc. - Philadelphia, PA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 02, 1917 Granted: Sep. 25, 1917 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen. "Vintage Machinery" entry for Henry Disston & Sons
Description: Level vial frame can be adjusted without dismantling the parts as well as each level vial can be adjusted independently.

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