FI895918A0 - Trapptelefonsystem. - Google Patents

Trapptelefonsystem.

Info

Publication number
FI895918A0
FI895918A0 FI895918A FI895918A FI895918A0 FI 895918 A0 FI895918 A0 FI 895918A0 FI 895918 A FI895918 A FI 895918A FI 895918 A FI895918 A FI 895918A FI 895918 A0 FI895918 A0 FI 895918A0
Authority
FI
Finland
Prior art keywords
trapptelefonsystem
Prior art date
Application number
FI895918A
Other languages
English (en)
Other versions
FI895918A (fi
FI85086C (fi
FI85086B (fi
Inventor
Matti Kangas
Original Assignee
Fonel Oy
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 Fonel Oy filed Critical Fonel Oy
Priority to FI895918A priority Critical patent/FI85086C/fi
Publication of FI895918A0 publication Critical patent/FI895918A0/fi
Priority to DE19904039696 priority patent/DE4039696A1/de
Publication of FI895918A publication Critical patent/FI895918A/fi
Application granted granted Critical
Publication of FI85086B publication Critical patent/FI85086B/fi
Publication of FI85086C publication Critical patent/FI85086C/fi

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)
FI895918A 1989-12-12 1989-12-12 Trapptelefonsystem. FI85086C (fi)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FI895918A FI85086C (fi) 1989-12-12 1989-12-12 Trapptelefonsystem.
DE19904039696 DE4039696A1 (de) 1989-12-12 1990-12-12 Tuersprechanlage

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI895918A FI85086C (fi) 1989-12-12 1989-12-12 Trapptelefonsystem.
FI895918 1989-12-12

Publications (4)

Publication Number Publication Date
FI895918A0 true FI895918A0 (fi) 1989-12-12
FI895918A FI895918A (fi) 1991-06-13
FI85086B FI85086B (fi) 1991-11-15
FI85086C FI85086C (fi) 1992-02-25

Family

ID=8529499

Family Applications (1)

Application Number Title Priority Date Filing Date
FI895918A FI85086C (fi) 1989-12-12 1989-12-12 Trapptelefonsystem.

Country Status (2)

Country Link
DE (1) DE4039696A1 (fi)
FI (1) FI85086C (fi)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4116935C2 (de) * 1991-05-24 1993-09-30 Stewing Gmbh & Co Kg Klingelanlage für Wohnhäuser, insbesondere Mehrfamilienhäuser, Altbauten o. dgl.
DE10011303C2 (de) * 2000-03-09 2003-09-25 Siedle & Soehne S Türanlage, Verfahren zum Betreiben einer Türanlage sowie Verwendung des OFDM-Verfahrens beim Betreiben einer Türanlage

Also Published As

Publication number Publication date
FI895918A (fi) 1991-06-13
FI85086C (fi) 1992-02-25
DE4039696A1 (de) 1991-06-13
FI85086B (fi) 1991-11-15

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: FONEL OY