Drilldown: Patents
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Patents > Inventors :
John Kobbe or
Les Larson or
Phil Crosby
& Filing date:
1950 - 1959
& Grant date:
1957
& Cites :
Patent US 2280531A or
Patent US 3214516A or
Patent US 3689752A or
Patent US 3740539A or
Patent US 4255003A or
None
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Showing below up to 2 results in range #1 to #2.