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US Patent: 1,062,799
Electromechanical device Rock drill
Patentee: George H. Rowe (exact or similar names) - Chicago, IL USPTO Classifications: 173/117, 173/118, 173/170, 310/50, 310/80 Tool Categories: trade specific : miner Assignees: Electro-Magnetic Tool Co. - Chicago, IL Manufacturer: Electro-Magnetic Tool Co. - Cicero, IL Witnesses: Edna L. Breidert P. H. Truman	Patent Dates: Applied: Oct. 08, 1909 Granted: May 27, 1913 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Electro-Magnetic Tool Co.
Description: Improvements to patent 938,709.

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