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US Patent: 1,407,160
Declutchable Safety Collar for Rotatable Nuts
Patentee: David C. Klausmeyer (exact or similar names) - Cincinnati, Hamilton County, OH USPTO Classifications: 74/424.72 Tool Categories: metalworking machines : metalworking machine mechanisms Assignees: Cincinnati Bickford Tool Co. - Cincinnati, Hamilton County, OH Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 09, 1920 Granted: Feb. 21, 1922 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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