Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 424,025
Machine for sharpening cutting-tools
Patentee:
Albert H. Richardson (exact or similar names) - San Francisco, CA

USPTO Classifications:
212/71, 451/213, 76/45, 76/51

Tool Categories:
metalworking machines : grinders : sharpening machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
H. C. Lee
S. H. Nourse

Patent Dates:
Applied: Aug. 14, 1889
Granted: Mar. 25, 1890

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Description:
"My invention relates to a machine which is design to sharpen files, saws, and all that class of tools which have irregular cutting-edges..."

Copyright © 2002-2024 - DATAMP