SE7812671L - COUPLING DEVICE FOR A CALL, DOOR PHONE AND DOOR OPENING SYSTEM - Google Patents

COUPLING DEVICE FOR A CALL, DOOR PHONE AND DOOR OPENING SYSTEM

Info

Publication number
SE7812671L
SE7812671L SE7812671A SE7812671A SE7812671L SE 7812671 L SE7812671 L SE 7812671L SE 7812671 A SE7812671 A SE 7812671A SE 7812671 A SE7812671 A SE 7812671A SE 7812671 L SE7812671 L SE 7812671L
Authority
SE
Sweden
Prior art keywords
door
call
coupling device
opening system
door opening
Prior art date
Application number
SE7812671A
Other languages
Swedish (sv)
Inventor
G Schlaps
Original Assignee
Siedle & Soehne S
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 Siedle & Soehne S filed Critical Siedle & Soehne S
Publication of SE7812671L publication Critical patent/SE7812671L/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
SE7812671A 1977-12-16 1978-12-08 COUPLING DEVICE FOR A CALL, DOOR PHONE AND DOOR OPENING SYSTEM SE7812671L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2756276A DE2756276C3 (en) 1977-12-16 1977-12-16 Circuit arrangement for a call, door intercom and door opener system

Publications (1)

Publication Number Publication Date
SE7812671L true SE7812671L (en) 1979-06-17

Family

ID=6026379

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7812671A SE7812671L (en) 1977-12-16 1978-12-08 COUPLING DEVICE FOR A CALL, DOOR PHONE AND DOOR OPENING SYSTEM

Country Status (14)

Country Link
BE (1) BE872780A (en)
DE (1) DE2756276C3 (en)
DK (1) DK535478A (en)
ES (1) ES475995A1 (en)
FI (1) FI783834A (en)
FR (1) FR2412126B3 (en)
GB (1) GB2010642B (en)
IS (1) IS2466A7 (en)
IT (1) IT1101562B (en)
LU (1) LU80652A1 (en)
NL (1) NL7812007A (en)
NO (1) NO784143L (en)
PT (1) PT68875A (en)
SE (1) SE7812671L (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1110111B (en) * 1979-01-12 1985-12-23 Acet Srl TWO-WIRE ELECTRIC DOOR ENTRY SYSTEM, SUSCEPTABLE TO USE A PRESSISTING DOOR BELL SYSTEM, WITHOUT THE NEED FOR ADDITIONAL POWER LINES
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

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE775090A (en) * 1970-11-10 1972-03-01 Citovox Ditta PARLOPHONE INSTALLATION WITH ELECTRIC DOORPHONE AND CONNECTIONS OBTAINED BY TWO CABLES ONLY

Also Published As

Publication number Publication date
NO784143L (en) 1979-06-19
PT68875A (en) 1979-01-01
DK535478A (en) 1979-06-17
GB2010642A (en) 1979-06-27
IS2466A7 (en) 1978-11-24
FR2412126B3 (en) 1981-10-16
GB2010642B (en) 1982-01-20
NL7812007A (en) 1979-06-19
FI783834A (en) 1979-06-17
IT1101562B (en) 1985-10-07
FR2412126A1 (en) 1979-07-13
BE872780A (en) 1979-03-30
ES475995A1 (en) 1979-04-16
IT7830842A0 (en) 1978-12-14
DE2756276C3 (en) 1982-08-12
LU80652A1 (en) 1979-04-13
DE2756276B2 (en) 1979-10-11
DE2756276A1 (en) 1979-06-21

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