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NEDERLANDSCHE TECHNISCHE HANDEL "GIRO" Mij

NEDERLANDS
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2047922A Gyroscope-controlled apparatus Expired / Lapsed 1933-05-05 1936-07-14 0 Details
US1840104A Gyroscopic apparatus for stabilizing bodies Expired / Lapsed 1929-04-06 1932-01-05 0 Details
US1577981A Resistance element Expired / Lapsed 1924-02-14 1926-03-23 0 Details