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US Patent: 1,433,590
Tool holder
Patentee: William Maxion Ziegler (exact or similar names) - Richmond, IN USPTO Classifications: 81/53.2 Tool Categories: metalworking machines : drilling and boring : tapping heads and chucks Assignees: Apex Machine Co. - Dayton, OH Manufacturer: Apex Machine Co. - Dayton, OH Witnesses: Unknown	Patent Dates: Applied: Apr. 04, 1921 Granted: Oct. 31, 1922 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Apex Machine Co.

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