Drilldown: Patents
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Patents > Filing date:
1980 - 1989
& Grant date:
December 1994
& Cites :
... or
Patent GB 460562A or
Patent US 3430093A or
Patent US 3629731A or
Patent US 4150420A or
Patent US 4255003A or
None
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Showing below up to 1 result in range #1 to #1.