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US Patent: 1,956,540
Electric arm clamping and elevating mechanism
Patentee: Augustus Marius Sosa (exact or similar names) - Cincinnati, OH USPTO Classifications: 408/130, 408/236, 408/237, 408/4 Tool Categories: metalworking machines : drilling and boring : drill presses : radial drill presses Assignees: Cincinnati Bickford Tool Co. - Cincinnati, OH Manufacturer: Cincinnati Bickford Tool Co. - Cincinnati, OH Witnesses: Unknown	Patent Dates: Applied: Jan. 09, 1930 Granted: Apr. 24, 1934 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Cincinnati Bickford Tool Co.

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