SE7711970L - Telefon for porttelefonanleggningar - Google Patents

Telefon for porttelefonanleggningar

Info

Publication number
SE7711970L
SE7711970L SE7711970A SE7711970A SE7711970L SE 7711970 L SE7711970 L SE 7711970L SE 7711970 A SE7711970 A SE 7711970A SE 7711970 A SE7711970 A SE 7711970A SE 7711970 L SE7711970 L SE 7711970L
Authority
SE
Sweden
Prior art keywords
telephone
portfolio
systems
portfolio systems
Prior art date
Application number
SE7711970A
Other languages
Unknown language ( )
English (en)
Inventor
M Heppner
W Koch
F Loh
Original Assignee
Loh Kg Ritto Werk
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 Loh Kg Ritto Werk filed Critical Loh Kg Ritto Werk
Publication of SE7711970L publication Critical patent/SE7711970L/sv

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)
  • Telephone Set Structure (AREA)
  • Interconnected Communication Systems, Intercoms, And Interphones (AREA)
SE7711970A 1976-10-28 1977-10-25 Telefon for porttelefonanleggningar SE7711970L (sv)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762648942 DE2648942A1 (de) 1976-10-28 1976-10-28 Sprechstelle fuer eine haustuer- sprechanlage

Publications (1)

Publication Number Publication Date
SE7711970L true SE7711970L (sv) 1978-04-29

Family

ID=5991674

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7711970A SE7711970L (sv) 1976-10-28 1977-10-25 Telefon for porttelefonanleggningar

Country Status (3)

Country Link
DE (1) DE2648942A1 (sv)
IT (1) IT1089579B (sv)
SE (1) SE7711970L (sv)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES1061117Y (es) * 2005-08-25 2006-04-16 Soriano Manuel Barbero Interfono de puerta perfeccionado.

Also Published As

Publication number Publication date
DE2648942A1 (de) 1978-05-11
IT1089579B (it) 1985-06-18

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Legal Events

Date Code Title Description
NAV Patent application has lapsed

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