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RAYMOND ROSEN ENGINEERING PROD

RAYMOND RO
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2719284A Telemetric systems and apparatus Expired / Lapsed 1950-10-11 1955-09-27 0 Details
US2634342A Commutator Expired / Lapsed 1950-02-18 1953-04-07 0 Details
US2592737A Multiplex telemetric system Expired / Lapsed 1950-10-11 1952-04-15 0 Details