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US Patent: 819,820
Ventilating Means for Inclosed Machines
Patentee: Egbert M. Tingley (exact or similar names) - Pittsburgh, PA USPTO Classifications: 277/431, 310/63, 384/286 Tool Categories: Assignees: Westinghouse Electric & Mfg. Co. - East Pittsburgh, PA Manufacturer: Not known to have been produced Witnesses: Wesley G. Carr Birney Hines C. L. Belcher Otto S. Schainer	Patent Dates: Applied: Mar. 17, 1905 Granted: May 08, 1906 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens Westinghouse Works Collection "Vintage Machinery" entry for Westinghouse Electric & Manufacturing Co.

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