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US Patent: 11,787
Pawl Drill
Patentee: Simon Ingersoll (exact or similar names) - New York, NY USPTO Classifications: 81/33 Tool Categories: woodworking tools : hand drills Assignees: None Manufacturer: Ingersoll Rock Drill Co. - New York, NY Witnesses: J. Dennis, Jr. John O'Neil	Patent Dates: Granted: Oct. 10, 1854 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Ingersoll-Rand Co.
Description: The Ingersoll Rock Drill Co. went through a couple of mergers and became part of Ingersoll-Rand Co. in 1905.

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