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US Patent: 1,990,138
Measuring Device for Tube Walls
Patentee: Hans Schüster (exact or similar names) - Immigrath (Ndrh.), Germany USPTO Classifications: 29/33K, 33/800 Tool Categories: layout tools : measurement gauges Assignees: None Manufacturer: Not known to have been produced Witnesses: none listed	Patent Dates: Applied: Jan. 18, 1934 Granted: Feb. 05, 1935 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens
Description: Application in Germany 03 Oct 1932.

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