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US Patent: 989,009
Cylinder Drain Cock Operating Mechanism
Patentee: Charles L. Heisler (exact or similar names) - Schenectady, Schenectady County, NY USPTO Classifications: 137/625.47, 91/448, 91/461, 91/464, 91/467 Tool Categories: transportation : railroads : railroad locomotives : locomotive drain cock apparatus Assignees: None Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Nov. 25, 1910 Granted: Apr. 11, 1911 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens

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