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US Patent: 833,699
Plumb Bob
Patentee: Laroy S. Starrett (exact or similar names) - Athol, MA USPTO Classifications: 33/393 Tool Categories: layout tools : plumb bobs Assignees: None Manufacturer: L. S. Starrett Co. - Athol, MA Witnesses: Willard G. Nims Frank E. Wing	Patent Dates: Applied: Feb. 07, 1906 Granted: Oct. 16, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for L. S. Starrett Co.
Description: Slender, mercury filled bob with a notch on the body to allow the cord to be wrapped around the body and be attached to the center. Produced by Starrett as their No 87 Plumb Bob.

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