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US Patent: 1,481,643
Percussive-tool front-end construction
Patentee: Francis A. Jimerson (exact or similar names) - Athens, PA USPTO Classifications: 173/210, 279/19.6, 279/19.7 Tool Categories: handheld power tools : handheld impact tools : impact riveters Assignees: Ingersoll-Rand Co. - Jersey City, NJ Manufacturer: Ingersoll-Rand Co. - Jersey City, NJ Witnesses: Unknown	Patent Dates: Applied: Nov. 26, 1920 Granted: Jan. 22, 1924 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: This patent date was seen on a pneumatically-powered circular saw from Ingersoll-Rand Co.

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