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Publication numberUS3835464 B1
Publication typeGrant
Publication date20 Nov 1984
Filing date11 Jan 1973
Priority date
11 Jan 1973
International Classification
G06F3/033
G06F3/14
Cooperative Classification
G06F2203/0333
G06F3/03543
European Classification
G06F 3/0354M
External Links
USPTO
USPTO Assignment
Espacenet

US 3835464 B1