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Drexel Dynamics Corp

Drexel Dyn
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US3084453A Coding apparatus Expired / Lapsed 1960-08-31 1963-04-09 2 Details
US3085132A Digital computer data read-out system Expired / Lapsed 1960-08-17 1963-04-09 2 Details
US3085227A Detection of characters Expired / Lapsed 1960-03-11 1963-04-09 2 Details