Search Images Maps Play YouTube News Gmail Drive More »
Advanced Patent Search | Web History | Sign in

Patents

Publication numberUS3808385 B1
Publication typeGrant
Publication date3 Jan 1989
Filing date11 Aug 1972
Priority date
11 Aug 1972
International Classification
H01H35/42
Cooperative Classification
H01H35/42
European Classification
H01H35/42
External Links
USPTO
USPTO Assignment
Espacenet

US 3808385 B1