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Int Electronics Co

Int Electr

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2712572A	Superimposed plural recording	Expired / Lapsed	1947-03-27	1955-07-05	0	Details
US2668718A	Magnetic letterhead	Expired / Lapsed	1947-03-27	1954-02-09	0	Details
US2555110A	Magnetic head assembly	Expired / Lapsed	1947-10-03	1951-05-29	0	Details
US2530029A	Equalizer for supporting magnetic recording and erasing hea…	Expired / Lapsed	1947-04-25	1950-11-14	0	Details