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US Patent: 1,214,497
Tool Holder
Patentee:
James Armstrong (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
279/76, 407/107, 407/92

Tool Categories:
metalworking machines : metal lathes : lathe tool holders and tool posts

Assignees:
Armstrong Brothers Tool Co. - Chicago, Cook County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jan. 14, 1916
Granted: Feb. 06, 1917

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens
"Vintage Machinery" entry for Armstrong Brothers Tool Co.

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