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US Patent: 1,093,269
Jack
Patentee: Isaiah E. Hindman (exact or similar names) - Crafton, PA USPTO Classifications: 254/111, 74/152, 74/169 Tool Categories: Assignees: Duff Mfg. Co. - Pittsburgh, PA Manufacturer: Duff Mfg. Co. - Pittsburgh, PA Witnesses: H. M. Corwin Jesse B. Heller	Patent Dates: Applied: Nov. 07, 1912 Granted: Apr. 14, 1914 Patent Pictures: [ 1 | 2 | 3 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Duff Mfg. Co.
Description: An example has been seen labeled, "THE DUFF MFG CO / PITTSBURGH / PA / NO 089 / 1916 MODEL / PAT APRIL 14 1914 / X-1490 / BARRETT".

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