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US Patent: 2,501,984
Shaft Seal
Patentee: Leroy D. Alward (exact or similar names) - Albany, Alameda County, CA USPTO Classifications: 277/397, 277/910 Tool Categories: industrial machines : industrial machine mechanisms : shaft seals Assignees: Pelton Water Wheel Co. - San Francisco, San Francisco County, CA Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 06, 1947 Granted: Mar. 28, 1950 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Pelton Water Wheel Co.

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