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US Patent: 1,840,498
Valve
Patentee: Albert F. Froussard (exact or similar names) - St. Louis, MO USPTO Classifications: 251/312 Tool Categories: industrial tools : industrial valves Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Sep. 27, 1929 Granted: Jan. 12, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Multiple Boring Machine Co.

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