EP 0945043 B1 20030702 - ELECTROACOUSTIC TRANSDUCER COMPRISING A CLOSING MEMBER FOR CLOSING THE REAR VOLUME OF THE TRANSDUCER
Title (en)
ELECTROACOUSTIC TRANSDUCER COMPRISING A CLOSING MEMBER FOR CLOSING THE REAR VOLUME OF THE TRANSDUCER
Title (de)
ELEKTROAKUSTISCHER WANDLER MIT EINEM VERSCHLUSSTEIL ZUM VERSCHLIESSEN VOM RÜCKVOLUMEN DES WANDLERS
Title (fr)
TRANSDUCTEUR ELECTROACOUSTIQUE COMPORTANT UN ELEMENT OBTURATEUR POUR FERMER SON VOLUME ARRIERE
Publication
Application
Priority
- EP 98900977 A 19980205
- EP 97890036 A 19970228
- IB 9800149 W 19980205
IPC 1-7
IPC 8 full level
H04R 9/02 (2006.01); H04R 1/02 (2006.01); H04R 9/06 (2006.01)
CPC (source: EP US)
Designated contracting state (EPC)
AT DE FR GB
DOCDB simple family (publication)
AT E244495 T1 20030715; DE 69816028 D1 20030807; DE 69816028 T2 20040422; EP 0945043 A1 19990929; EP 0945043 B1 20030702; JP 2000509935 A 20000802; JP 4126620 B2 20080730
DOCDB simple family (application)
AT 98900977 T 19980205; DE 69816028 T 19980205; EP 98900977 A 19980205; JP 52924098 A 19980205