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AMPEREX ELECTRONIC PRODUCTS IN

AMPEREX EL
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Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2304297A Art of utilizing molybdenum Expired / Lapsed 1939-05-12 1942-12-08 0 Details
US2156230A Oscillation generating system Expired / Lapsed 1936-10-14 1939-04-25 0 Details