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US Patent: 162,194
Improvement in bolt-threading machines
Patentee: Erhard Schlenker (exact or similar names) - Buffalo, NY USPTO Classifications: 29/DIG.079, 29/DIG.091, 29/DIG.093, 408/66, 470/96 Tool Categories: metalworking machines : metal threading machines Assignees: Erhard Schlenker - Buffalo, NY Rufus L. Howard - Buffalo, NY Gibson F. Howard - Buffalo, NY Manufacturer: Howard Iron Works - Buffalo, NY Witnesses: P. P. Burtis S. Finley	Patent Dates: Applied: Oct. 19, 1874 Granted: Apr. 20, 1875 Patent Pictures: [ 1 | 2 ] USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Howard Iron Works

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