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US Patent: 439,660
Feed Screw and Nut for the Same
Patentee:
August Holmquist (exact or similar names) - Chicago, Cook County, IL

USPTO Classifications:
411/279, 411/937.2, 74/441

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking power transmission

Assignees:
August Holmquist - Chicago, Cook County, IL
Charles H. Durphy - Chicago, Cook County, IL

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: May 19, 1890
Granted: Nov. 04, 1890

Patent Pictures:
USPTO (New site tip)
Google Patents
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