Drilldown: Patents
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Patents > Filing date:
1970 - 1979
& Grant date:
May 10, 1983
& Cites :
Patent US 2169046A or
Patent US 2280531A or
Patent US 3510690A or
Patent US 4048577A or
Patent US 4146844A or
None
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Showing below up to 1 result in range #1 to #1.