Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 892,107
Change Speed Gear
Patentee:
George R. Willis (exact or similar names) - Franklin, Venango County, PA

USPTO Classifications:
74/333

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking variable speed mechanisms
metalworking machines : drilling and boring : vertical boring mills

Assignees:
Colburn Machine Tool Co. - Franklin, Venango County, PA

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 30, 1903
Granted: Jun. 30, 1908

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

Copyright © 2002-2024 - DATAMP