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H Maihak AG

H Maihak A
Active Patents
0
Total Holdings
2

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3988923A Measuring device Expired / Lapsed 1975-03-20 1976-11-02 13 Details
US2750796A Apparatus for measuring variable conditions in bore-holes Expired / Lapsed 1951-05-31 1956-06-19 2 Details