Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 5,568
Improvement in electric telegraphs
Patentee:
Charles F. Johnson (exact or similar names) - Owego, NY

USPTO Classifications:
144/278.1, 178/92, 341/67

Tool Categories:
specialty machines : telegraphy apparatus

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Unknown

Patent Dates:
Granted: May 16, 1848

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

Copyright © 2002-2024 - DATAMP