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US Patent: 2,615,671
Metering Valve
Patentees: Walter S. Landon, deceased (Estate of) (exact or similar names) - Detroit, Wayne County, MI Marion E. Landon, Administratrix (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 137/625.12, 137/625.3, 137/625.39 Tool Categories: specialty tools : metering apparatus hardware : valves Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: May 15, 1947 Granted: Oct. 28, 1952 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Detroit Lubricator Co.

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