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US Patent: 1,255,315
Ratchet operating mechanism for drills
Patentee: Francis A. Jimerson (exact or similar names) - Athens, PA USPTO Classifications: 74/116, 91/180 Tool Categories: industrial machines : pneumatic : pneumatic motors handheld power tools : handheld power drills Assignees: Ingersoll-Rand Co. - Jersey City, NJ Manufacturer: Ingersoll-Rand Co. - Jersey City, NJ Witnesses: Unknown	Patent Dates: Applied: Jun. 19, 1915 Granted: Feb. 05, 1918 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: Improvements to patent 1,172,901.

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