This page displays all 「FI」 in main group H04R13/00. HB:Handbook CC:Concordance ReturnTo FI-Section/Broad-Facet-Choice Onelevelup H04R13/00 Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet HB CC 5D021 H04R13/00,330 .Ultrasonic transmitter/receiver HB CC 5D019 H04R13/02 .Telephone receivers HB CC 5D021 TOP
H04R13/00 Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet HB CC 5D021 H04R13/00,330 .Ultrasonic transmitter/receiver HB CC 5D019 H04R13/02 .Telephone receivers HB CC 5D021