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Mark IV Transportation Products Corp

Mark IV Tr
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4236215A Vehicular data handling and control system Expired / Lapsed 1978-10-26 1980-11-25 10 Details
US4071282A Slip-slide detector system for railway car wheels Expired / Lapsed 1976-02-04 1978-01-31 10 Details
US3864731A Vehicle data recorder employing data compression Expired / Lapsed 1973-07-16 1975-02-04 10 Details