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US Patent: 604,678
Ball-retainer for antifriction-bearings
Patentee: Henry B. Keiper (exact or similar names) - Lancaster, PA USPTO Classifications: 384/528 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine bearings metalworking machines : metalworking machine mechanisms : metalworking machine bearings Assignees: Henry B. Keiper - Lancaster, PA John Hertzler - Lancaster, PA Manufacturer: Star Ball Retainer Co. - Lancaster, PA Witnesses: Paul A. Herr Harvey B. Lutz	Patent Dates: Applied: Oct. 09, 1897 Granted: May 24, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Champion Blower & Forge Co.
Description: See patent 686,617 for an improvement to this invention.

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