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US Patent: 772,022
Ball-bearing sheave
Patentee: Charles O. Brinley (exact or similar names) - Phladelphia, PA USPTO Classifications: 16/210, 16/46, 254/416, 384/547, 43/24 Tool Categories: industrial machines : industrial machine mechanisms : industrial machine pulleys and belt drive mechanisms Assignees: American Pulley Co. - Philadelphia, PA Manufacturer: American Pulley Co. - Philadelphia, PA Witnesses: A. M. Widdows John V. Martin	Patent Dates: Applied: Apr. 20, 1904 Granted: Oct. 11, 1904 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for American Pulley Co.

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