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US Patent: 2,416,267
Automatic Orifice Cleaning Device
Patentee: Walter S. Landon (exact or similar names) - Detroit, Wayne County, MI USPTO Classifications: 137/244, 137/402, 137/423, 137/549, 73/322.5 Tool Categories: specialty tools : pipe and orifice cleaners Assignees: Detroit Lubricator Co. - Detroit, Wayne County, MI Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Apr. 22, 1944 Granted: Feb. 18, 1947 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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