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US Patent: 1,038,110
Centrifugal fan-wheel
Patentee: Benjamin S. Foss (exact or similar names) - Boston, MA USPTO Classifications: 29/889.4, 310/211, 416/178, 416/187 Tool Categories: electrical devices : electric motors : motor cooling Assignees: B. F. Sturtevant Co. - Boston, MA Manufacturer: Not known to have been produced Witnesses: George E. Stebbins Nettie D. McPhail	Patent Dates: Applied: Jan. 28, 1911 Granted: Sep. 10, 1912 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin

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