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US Patent: 1,224,596
Tapping attachment for boring-machines
Patentee: Bertil Wilhelm Bronander (exact or similar names) - Brooklyn, NY USPTO Classifications: 74/355 Tool Categories: metalworking machines : drilling and boring : tapping heads and chucks Assignees: Wahlstrom Tool Co. - New York, NY Manufacturer: Wahlstrom Tool Co. - New York, NY Witnesses: Sydney I. Prescott Elizabeth Louise Russell	Patent Dates: Applied: Sep. 19, 1916 Granted: May 01, 1917 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Wahlstrom Tool Co.

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