ATA180694A - HOUSE SIGNAL AND DOOR OPENING SYSTEM - Google Patents

HOUSE SIGNAL AND DOOR OPENING SYSTEM

Info

Publication number
ATA180694A
ATA180694A AT180694A AT180694A ATA180694A AT A180694 A ATA180694 A AT A180694A AT 180694 A AT180694 A AT 180694A AT 180694 A AT180694 A AT 180694A AT A180694 A ATA180694 A AT A180694A
Authority
AT
Austria
Prior art keywords
door opening
opening system
house signal
house
signal
Prior art date
Application number
AT180694A
Other languages
German (de)
Original Assignee
Grothe & Soehne Gmbh & Co Kg A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Grothe & Soehne Gmbh & Co Kg A filed Critical Grothe & Soehne Gmbh & Co Kg A
Publication of ATA180694A publication Critical patent/ATA180694A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/02—Telephonic communication systems specially adapted for combination with other electrical systems with bell or annunciator systems
    • H04M11/025—Door telephones
AT180694A 1993-09-30 1994-09-23 HOUSE SIGNAL AND DOOR OPENING SYSTEM ATA180694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934333455 DE4333455C2 (en) 1993-09-30 1993-09-30 House signal and door opener system

Publications (1)

Publication Number Publication Date
ATA180694A true ATA180694A (en) 1997-08-15

Family

ID=6499145

Family Applications (1)

Application Number Title Priority Date Filing Date
AT180694A ATA180694A (en) 1993-09-30 1994-09-23 HOUSE SIGNAL AND DOOR OPENING SYSTEM

Country Status (3)

Country Link
AT (1) ATA180694A (en)
DE (1) DE4333455C2 (en)
NL (1) NL9401583A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1274517B (en) * 1995-05-17 1997-07-17 Aurelio Cattaneo COMMUNICATION AND ALARM SYSTEM, TO CONNECT TEMPORARILY, AT A SHORT DISTANCE, PORTABLE RADIO TRANSCEIVERS WITH A DOOR PHONE SYSTEM

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1537806B1 (en) * 1967-07-18 1970-10-15 Siedle & Soehne Telefon U Tele Call circuit arrangement for door intercom with several apartment intercoms
DE1926314A1 (en) * 1969-03-07 1970-11-26 Heider Gmbh Circuit arrangement for combined door intercom and opener systems in multi-apartment buildings
DE2409393B2 (en) * 1974-02-27 1976-07-29 Siemens AG, 1000 Berlin und 8000 München CIRCUIT ARRANGEMENT FOR SMALL TO MEDIUM GATE INTERCOM SYSTEM WITHOUT CENTRAL CONTROL DEVICES WITH SEVERAL HOUSE STATIONS ACCESSIBLE FROM ONE GATE STATION
DE2522668B2 (en) * 1975-05-22 1978-06-15 Guenter 5963 Wenden Engel Circuit arrangement for a combined call, door intercom and opening system in residential buildings
US4658095A (en) * 1985-04-15 1987-04-14 Elias Santiago Building intercom system
DE4130101C1 (en) * 1991-09-11 1993-02-04 Ritto-Werk Loh Gmbh & Co Kg, 6342 Haiger, De Door intercom with door-opening button - centrally generates call signal and feeds to individual internal intercoms using circuit including two series-connected Zener diodes and parallel decoupling diode

Also Published As

Publication number Publication date
NL9401583A (en) 1995-04-18
DE4333455A1 (en) 1995-04-13
DE4333455C2 (en) 1996-09-12

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Legal Events

Date Code Title Description
A1J Withdrawal paragraph 166 lit. 6
REN Ceased due to non-payment of the annual fee