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US Patent: 906,938
Drill-chuck
Patentee: Ross M. Russell (exact or similar names) - Elmira, NY USPTO Classifications: 279/69 Tool Categories: metalworking machines : drilling and boring : drill presses : drill press chucks woodworking machines : wood drilling and boring : drill presses : drill press chucks Assignees: Russell Anti-Friction Drill Chuck Co. - Elmira, NY Manufacturer: Russell Anti-Friction Drill Chuck Co. - Elmira, NY Witnesses: John M. McDowell Wallace W. Seeley	Patent Dates: Applied: Dec. 17, 1907 Granted: Dec. 15, 1908 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Russell Anti-Friction Drill Chuck Co.
Description: Improvements to the chuck of patent 539,193.

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