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US Patent: 2,728,328
Automatic water valve for rock drills
Patentee: George H. Fuehrer (exact or similar names) - Downey, CA USPTO Classifications: 173/77 Tool Categories: Assignees: Thor Power Tool Co. - Aurora, IL Manufacturer: Thor Power Tool Co. - Aurora, IL Witnesses: Unknown	Patent Dates: Applied: May 18, 1953 Granted: Dec. 27, 1955 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Thor Power Tool Co.

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