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Current content: 158 967 801 patent documents

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150 730 new documents added

999 816 documents amended

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EP 0377143 A2 19900711 - Loudspeaker voice coil.

Title (en)

Loudspeaker voice coil.

Title (de)

Lautsprecher-Schwingspule.

Title (fr)

Bobine de haut-parleur.

Publication

EP 0377143 A2 19900711 (DE)

Application

EP 89122992 A 19891213

Priority

DE 3900038 A 19890103

Abstract (en)

The voice coil (1) is wound of conductive foil instead of of wires, which results in considerable weight saving. <IMAGE>

Abstract (de)

Die Schwingspule (1) ist statt aus Drähten aus leitender Folie gewickelt, wodurch sich eine wesentliche Gewichtsersparnis erzielen läßt.

IPC 1-7

H04R 9/04

IPC 8 full level

H04R 9/04 (2006.01)

CPC (source: EP)

H04R 9/041 (2013.01)

Designated contracting state (EPC)

AT BE DE ES FR GB GR IT NL

DOCDB simple family (publication)

EP 0377143 A2 19900711; EP 0377143 A3 19910731; DE 3900038 A1 19900705

DOCDB simple family (application)

EP 89122992 A 19891213; DE 3900038 A 19890103