Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 690,320
Machine for Hammering or Tapering Piston Rings
Patentee:
Davy Robertson (exact or similar names) - Gothenburg, Sweden

USPTO Classifications:
29/888.071, 72/319, 72/438, 72/447

Tool Categories:
metalworking machines : metal swaging machines

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Aug. 03, 1901
Granted: Dec. 31, 1901

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Joel Havens

Copyright © 2002-2024 - DATAMP