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US Patent: 2,042,782
Dust Removing Means for Valve Seat Grinders or the Like
Patentee: Ernest A. Hall (exact or similar names) - Toledo, Lucas County, OH USPTO Classifications: 137/625.3, 239/581.1, 251/206, 251/208, 251/304, 251/340 Tool Categories: specialty machines : dust collectors specialty machines : valve reseating machines trade specific : vehicle repairer : vehicle mechanic : valve and seat maintenance Assignees: Hall Manufacturing Co. - Toledo, Lucas County, OH Manufacturer: Hall Manufacturing Co. - Toledo, Lucas County, OH Witnesses: Unknown	Patent Dates: Applied: May 26, 1934 Granted: Jun. 02, 1936 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for Hall Manufacturing Co.

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