Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 493,874
Power Hammer
Patentee:
Joseph O'Brien (exact or similar names) - Boston, Middlesex County, MA

USPTO Classifications:
72/434, 72/445, 72/446

Tool Categories:
metalworking machines : forging machines : power hammers

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Applied: Feb. 05, 1892
Granted: Mar. 21, 1893

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

Copyright © 2002-2024 - DATAMP