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US Patent: 948,570
Spirit-Level
Patentee: Eldor Andersen (exact or similar names) - New York, NY USPTO Classifications: 33/348.2 Tool Categories: layout tools : levels Assignees: None Manufacturer: Not known to have been produced Witnesses: Charles R. Searle H. J. Petersen C. L. Meyers	Patent Dates: Applied: Jan. 07, 1909 Granted: Feb. 08, 1910 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Ralph Brendler
Description: This level features a built in electric light to facilitate reading in dim conditions.

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