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US Patent: 114,027
Improvement in Adjustable Spirit Levels
Patentees: Joab Morss (exact or similar names) - Philadelphia, PA Franklin B. Abel (exact or similar names) - Philadelphia, PA USPTO Classifications: 33/385 Tool Categories: layout tools : levels Assignees: None Manufacturer: Not known to have been produced Witnesses: A. H. Shoemaker Authur J. Cooke Adam L. Hoshack	Patent Dates: Granted: Apr. 25, 1871 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Plate covers the adjusting mechanisms and after adjustment clamps and secures the adjusting screw to maintain the adjustment.

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