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US Patent: 636,741
Tool-holder
Patentee: James Armstrong (exact or similar names) - Chicago, IL USPTO Classifications: 407/112, 407/117, 623/36 Tool Categories: metalworking machines : metal lathes : lathe tool holders and tool posts Assignees: None Manufacturer: Armstrong Brothers Tool Co. - Chicago, IL Witnesses: John M. Clancy Thomas Clancy	Patent Dates: Applied: Jul. 10, 1899 Granted: Nov. 14, 1899 Patent Pictures: USPTO (New site tip) Google Patents Report data errors or omissions to steward Jeff Joslin Vintage Machinery entry for Armstrong Brothers Tool Co.

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