Drilldown: Patents

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Patents > Grant date: 1990 - 1999 & Cites : ... or Patent GB 460562A or Patent US 2922074A or Patent US 3331983A or Patent US 3629731A or Patent US 3689752A or Patent US 4150420A or None & Links : 5A38 or 7912 or 7912AD or 7A24 or None

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Showing below up to 25 results in range #251 to #275.

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