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Westinghouse Electric Elevator Co

Westinghou
Active Patents
0
Total Holdings
3

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US2121588A Motor control system Expired / Lapsed 1937-01-16 1938-06-21 0 Details
US2103805A Control system for electric motors Expired / Lapsed 1936-11-07 1937-12-28 0 Details
US1822152A Selenium cell door closer Expired / Lapsed 1929-01-18 1931-09-08 0 Details