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US Patent: 745,758
Slotting Machine Tool Holder
Patentees:
John Armstrong (exact or similar names) - Chicago, Cook County, IL
Samuel Welter (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
409/348

Tool Categories:
metalworking machines : metal slotting machines : slotting machine tool holders

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

Manufacturer:
Not known to have been produced

Witnesses:
Paul Armstrong
May V. Michaud
W. H. Cotton
L. H. Taylor

Patent Dates:
Applied: May 29, 1903
Granted: Dec. 01, 1903

Patent Pictures:
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Report data errors or omissions to steward Joel Havens
Armstrong Brothers Tool Co. history
"Vintage Machinery" entry for Armstrong Brothers Tool Co.
Description:
Louis K. Gillson - patent attorney

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