The Echlin Manufacturing Co

The Echlin

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US2244717A	Electrical network	Expired / Lapsed	1939-12-04	1941-06-10	Details
US2221591A	Frequency measuring apparatus	Expired / Lapsed	1939-05-01	1940-11-12	Details
US2161146A	Apparatus for measuring frequency	Expired / Lapsed	1936-08-15	1939-06-06	Details