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US Patent: 2,727,680
Centrifugal fan
Patentees: Robert D. Robson (exact or similar names) - Buffalo, NY Walter R. Elliot (exact or similar names) - Buffalo, NY Howard C. Burgin (exact or similar names) - Buffalo, NY Richard D. Madison (exact or similar names) - Buffalo, NY USPTO Classifications: 415/172.1, 415/183, 415/191, 415/204, 415/98, 416/184 Tool Categories: Assignees: Buffalo Forge Co. - Buffalo, NY Manufacturer: Not known to have been produced Witnesses: Unknown	Patent Dates: Applied: Aug. 02, 1951 Granted: Dec. 20, 1955 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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