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US Patent: 292,396
Pump-valve
Patentee: Christopher Ahrens (exact or similar names) - Cincinnati, OH USPTO Classifications: 137/543.15, 137/906 Tool Categories: industrial machines : pumps : pump valves Assignees: Ahrens Mfg. Co. - Cincinnati, OH Manufacturer: American Fire Engine Co. - Seneca Falls, NY Witnesses: John W. Hill Joseph W. Sims	Patent Dates: Applied: Jun. 02, 1883 Granted: Jan. 22, 1884 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Silsby, Race & Holly
Description: This patent number was seen in an 1893 catalog from the American Fire Engine Co., a firm descended from Silsby, Race & Holly (see link).

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