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MAGNETONE Inc

MAGNETONE
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2380392A Magnetic recording and reproducing Expired / Lapsed 1943-07-21 1945-07-31 0 Details
US2356145A Magnetic sound recording and reproducing Expired / Lapsed 1940-06-12 1944-08-22 0 Details
US2224854A Magnetic sound recording and reproducing Expired / Lapsed 1938-03-24 1940-12-17 0 Details