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US Patent: 237,872
Power Hammer
Patentee: William R. Jenkins, Jr. (exact or similar names) - Bellefonte, Centre County, PA USPTO Classifications: 72/431, 72/450 Tool Categories: metalworking machines : forging machines : power hammers Assignees: None Manufacturer: W. P. Duncan & Co. - Bellefonte, Centre County, PA Jenkins & Lingle - Bellefonte, Centre County, PA Witnesses: Unknown	Patent Dates: Applied: Oct. 26, 1880 Granted: Feb. 15, 1881 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Joel Havens "Vintage Machinery" entry for W. P. Duncan & Co. | Jenkins & Lingle
Description: In 1888, W. P. Duncan retired and the firm subsequently became Jenkins & Lingle.

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