DE300232C - - Google Patents

Info

Publication number
DE300232C
DE300232C DENDAT300232D DE300232DA DE300232C DE 300232 C DE300232 C DE 300232C DE NDAT300232 D DENDAT300232 D DE NDAT300232D DE 300232D A DE300232D A DE 300232DA DE 300232 C DE300232 C DE 300232C
Authority
DE
Germany
Prior art keywords
call
battery
stations
calling
common
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
DENDAT300232D
Other languages
German (de)
English (en)
Publication of DE300232C publication Critical patent/DE300232C/de
Active legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/738—Interface circuits for coupling substations to external telephone lines
    • H04M1/74—Interface circuits for coupling substations to external telephone lines with means for reducing interference; with means for reducing effects due to line faults

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Sub-Exchange Stations And Push- Button Telephones (AREA)
DENDAT300232D Active DE300232C (enrdf_load_stackoverflow)

Publications (1)

Publication Number Publication Date
DE300232C true DE300232C (enrdf_load_stackoverflow)

Family

ID=554231

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT300232D Active DE300232C (enrdf_load_stackoverflow)

Country Status (1)

Country Link
DE (1) DE300232C (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867278A (en) * 1988-06-17 1989-09-19 Walton James F Wheel chocking device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4867278A (en) * 1988-06-17 1989-09-19 Walton James F Wheel chocking device

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