DE107842C - - Google Patents

Info

Publication number
DE107842C
DE107842C DENDAT107842D DE107842DA DE107842C DE 107842 C DE107842 C DE 107842C DE NDAT107842 D DENDAT107842 D DE NDAT107842D DE 107842D A DE107842D A DE 107842DA DE 107842 C DE107842 C DE 107842C
Authority
DE
Germany
Prior art keywords
control
headphones
line
speech
circuit
Prior art date
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.)
Active
Application number
DENDAT107842D
Other languages
German (de)
English (en)
Publication of DE107842C publication Critical patent/DE107842C/de
Active legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M5/00Manual exchanges
    • H04M5/10Manual exchanges using separate plug for each subscriber

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
DENDAT107842D Active DE107842C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE107842C true DE107842C (enrdf_load_html_response)

Family

ID=377868

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT107842D Active DE107842C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE107842C (enrdf_load_html_response)

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