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Kelvin Hughes Ltd

Kelvin Hug

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2924886A	Transmitting magnetic compass systems	Expired / Lapsed	1957-07-30	1960-02-16	0	Details
US2843676A	Means for producing dispersion in electrical oscillations	Expired / Lapsed	1954-03-04	1958-07-15	0	Details
US2770966A	Apparatus for non-destructive testing of solid bodies by ac…	Expired / Lapsed	1952-12-12	1956-11-20	0	Details
US2588763A	Navigation instrument	Expired / Lapsed	1948-02-26	1952-03-11	0	Details