DE2248427A1 - - Google Patents

Info

Publication number
DE2248427A1
DE2248427A1 DE19722248427 DE2248427A DE2248427A1 DE 2248427 A1 DE2248427 A1 DE 2248427A1 DE 19722248427 DE19722248427 DE 19722248427 DE 2248427 A DE2248427 A DE 2248427A DE 2248427 A1 DE2248427 A1 DE 2248427A1
Authority
DE
Germany
Legal status (The legal status 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 status listed.)
Granted
Application number
DE19722248427
Other languages
German (de)
Other versions
DE2248427C2 (de
DE2248427B1 (de
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 filed Critical
Priority to DE19722248427 priority Critical patent/DE2248427C2/de
Publication of DE2248427B1 publication Critical patent/DE2248427B1/de
Publication of DE2248427A1 publication Critical patent/DE2248427A1/de
Application granted granted Critical
Publication of DE2248427C2 publication Critical patent/DE2248427C2/de
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/42—Systems providing special services or facilities to subscribers
    • H04M3/56—Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
DE19722248427 1972-10-03 1972-10-03 Schaltungsanordnung für Konferenzschaltungen Expired DE2248427C2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19722248427 DE2248427C2 (de) 1972-10-03 1972-10-03 Schaltungsanordnung für Konferenzschaltungen

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722248427 DE2248427C2 (de) 1972-10-03 1972-10-03 Schaltungsanordnung für Konferenzschaltungen

Publications (3)

Publication Number Publication Date
DE2248427B1 DE2248427B1 (de) 1973-07-12
DE2248427A1 true DE2248427A1 (enExample) 1973-07-12
DE2248427C2 DE2248427C2 (de) 1974-04-04

Family

ID=5858053

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722248427 Expired DE2248427C2 (de) 1972-10-03 1972-10-03 Schaltungsanordnung für Konferenzschaltungen

Country Status (1)

Country Link
DE (1) DE2248427C2 (enExample)

Also Published As

Publication number Publication date
DE2248427C2 (de) 1974-04-04
DE2248427B1 (de) 1973-07-12

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Legal Events

Date Code Title Description
E771 Valid patent as to the heymanns-index 1977, willingness to grant licences
EHJ Ceased/non-payment of the annual fee