Title (en)

ACTIVE ACOUSTIC TRANSMISSION LOSS BOX

Title (de)

Gehäuse mit aktiv erzeugtem akustischem Übertragungsverlust

Title (fr)

CAISSON ACTIF REDUISANT LA TRANSMISSION ACOUSTIQUE

Publication

EP 0664044 B1 19990915 (EN)

Application

EP 93904473 A 19921008

Priority

• CA 2145862 A 19921008
• US 9208401 W 19921008

IPC 1-7

G10K 11/16

IPC 8 full level

G10K 11/16 (2006.01)

Citation (examination)

US 4815139 A 19890321 - ERIKSSON LARRY J [US], et al

Designated contracting state (EPC)

BE DE DK FR GB IT NL SE

DOCDB simple family (publication)

EP 0664044 A1 19950726; EP 0664044 A4 19960403; EP 0664044 B1 19990915

DOCDB simple family (application)

EP 93904473 A 19921008