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Engelhard Industries Inc

Engelhard
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2973495A Temperature measuring device Expired / Lapsed 1958-06-20 1961-02-28 0 Details
US2911057A Hydrogen purifier Expired / Lapsed 1957-07-30 1959-11-03 0 Details