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US Patent: 1,763,158
Thirty-Six Speed Head
Patentees: David C. Klausmeyer (exact or similar names) - Cincinnati, Hamilton County, OH Henry M. Norris (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 116/233, 74/333 Tool Categories: metalworking machines : metalworking machine mechanisms : metalworking machine gearing : metalworking speed changing mechanisms Assignees: Cincinnati Bickford Tool Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Mar. 28, 1925 Granted: Jun. 10, 1930 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Cincinnati Bickford Tool Co.

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