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US Patent: 329,573
Plumb Bob
Patentee: Adam Leidgen (exact or similar names) - Milwaukee, WI USPTO Classifications: 33/350, 33/393 Tool Categories: layout tools : plumb bobs Assignees: None Manufacturer: Not known to have been produced Witnesses: C. T. Benedict Theo. Seaman	Patent Dates: Applied: Jan. 05, 1885 Granted: Nov. 03, 1885 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Russ Allen.
Description: Provides an adjustable and removeable centering rod with a clamp.

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