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US Patent: 1,890,212
Whistle and the like
Patentee: Arthur L. Bridgham (exact or similar names) - Boston, MA USPTO Classifications: 116/137A, 116/DIG.019 Tool Categories: propulsion and energy : steam apparatus : steam whistles Assignees: Charles H. Sherburne - Boston, MA Manufacturer: Sherburne Co. - Boston, MA Witnesses: Unknown	Patent Dates: Applied: Apr. 19, 1932 Granted: Dec. 06, 1932 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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