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US Patent: 464,820
Pneumatic Tool for rock-cutting
Patentee: Daniel Drawbaugh (exact or similar names) - Eberly's Mills, PA USPTO Classifications: 173/17, 173/207, 91/290, 91/316 Tool Categories: Assignees: Pneumatic & Electric Tool Co. - Unknown, NJ Manufacturer: Not known to have been produced Witnesses: F. P. Stephenson W. M. Hain	Patent Dates: Applied: Aug. 27, 1891 Granted: Dec. 08, 1891 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Daniel Drawbaugh

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