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US Patent: 628,110
Tapping-machine
Patentee: Oscar Mueller (exact or similar names) - Decatur, IL USPTO Classifications: 408/92 Tool Categories: metalworking machines : drilling and boring : tapping machines Assignees: None Manufacturer: Not known to have been produced Witnesses: Barna McDaniel Mabel Carson	Patent Dates: Applied: Apr. 01, 1899 Granted: Jul. 04, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin
Description: "This invention is intended to provide a cheap and superior substitute for the old-style 'crow-hook' dry-pip and gas tapping machine."

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