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Current content: 156 978 933 patent documents

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169 914 new documents added

2 331 667 documents amended

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EP 0818105 A1 19980114 - DOOR INTERCOM

Title (en)

DOOR INTERCOM

Title (de)

TÜRRUFBEANTWORTER

Title (fr)

INTERPHONE DE PORTE

Publication

EP 0818105 A1 19980114 (DE)

Application

EP 96907994 A 19960401

Priority

DE 9600565 W 19960401
DE 19511622 A 19950330

Abstract (en)

[origin: DE19511622A1] The proposal is for an automatic door intercom (1) with a door speaker system (2), a recorder (7) and a telecommunication system (3) which can be connected as a compact module between the speaker system (2), the recorder (7) and the telecommunication system (3).

IPC 1-7

H04M 11/02; H04M 1/02

IPC 8 full level

H04M 1/02 (2006.01); H04M 11/02 (2006.01)

CPC (source: EP US)

H04M 1/0291 (2013.01 - EP US); H04M 11/025 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE DK FR GB IT LI NL SE

DOCDB simple family (publication)

DE 19511622 A1 19961002; AU 5141596 A 19961016; DE 19680200 D2 19980423; EP 0818105 A1 19980114; US 6233328 B1 20010515; WO 9631045 A1 19961003

DOCDB simple family (application)

DE 19511622 A 19950330; AU 5141596 A 19960401; DE 19680200 T 19960401; DE 9600565 W 19960401; EP 96907994 A 19960401; US 93084197 A 19971222