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US Patent: 1,700,409
Pipe-Thread Cleaner and Chaser
Patentee: Hans K. Hyrup (exact or similar names) - Los Angeles, Los Angeles County, CA USPTO Classifications: 408/186, 470/134, 470/209, 82/128 Tool Categories: specialty tools : pipe and orifice cleaners Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 25, 1924 Granted: Jan. 29, 1929 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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