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US Patent: 2,142,923
Drill grinding machine
Patentee: Roderick P. Stocking (exact or similar names) - Drexel Hill, PA USPTO Classifications: 269/58, 269/71, 269/76, 451/272, 451/375 Tool Categories: metalworking machines : grinders : drill grinders Assignees: William Sellers & Co., Inc. - Philadelphia, PA Manufacturer: William Sellers & Co., Inc. - Philadelphia, PA Witnesses: Unknown	Patent Dates: Applied: Aug. 05, 1936 Granted: Jan. 03, 1939 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for William Sellers & Co.
Description: Patent number seen on a Type 1-G drill grinder from William Sellers & Co.

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