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US Patent: 600,493
Shaking-grate
Patentee: George A. Gumphert (exact or similar names) - Ventnor, Atlantic City, NJ USPTO Classifications: 126/176R, 126/180 Tool Categories: Assignees: None Manufacturer: Not known to have been produced Witnesses: E. Hayward Fairbanks John A. Wiedersheim	Patent Dates: Applied: Nov. 06, 1897 Granted: Mar. 08, 1898 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for George A. Gumphert & Co.

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