Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q3/00—Selecting arrangements
  • H04Q3/58—Arrangements providing connection between main exchange and sub-exchange or satellite
  • H04Q3/62—Arrangements providing connection between main exchange and sub-exchange or satellite for connecting to private branch exchanges
  • H04Q3/625—Arrangements in the private branch exchange

Landscapes

• Physics & Mathematics (AREA)
• Astronomy & Astrophysics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Interface Circuits In Exchanges (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=3683168

Family Applications (1)

Country Status (2)

Families Citing this family (1)

• 0
  • BE BE519427D patent/BE519427A/xx unknown
• 1953
  • 1953-04-18 DE DEI7139A patent/DE929133C/de not_active Expired

Also Published As

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