Filed: March 12, 1990 thick film hybrid electronic circuits, hearing aid electronic circuits, computer cursor management devices for the manual… Owned by:HEI, Inc. Serial Number:74037245
Filed: March 13, 1990 thick film hybrid electronic circuits, hearing aid electronic circuits, computer cursor management devices for the manual… Owned by:HEI, Inc. Serial Number:74037713
Filed: March 11, 1997 custom manufacture of ultraminiature custom microelectronic devices and high technology products incorporating those devices… Owned by:HEI, Inc. Serial Number:75255747