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
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q1/00—Details of selecting apparatus or arrangements
  • H04Q1/18—Electrical details
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q3/00—Selecting arrangements

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Physics & Mathematics (AREA)
• Astronomy & Astrophysics (AREA)
• General Physics & Mathematics (AREA)
• Monitoring And Testing Of Exchanges (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4480667

Family Applications (1)

Country Status (3)

• 0
  • NL NL78394D patent/NL78394C/xx active
  • NL NL696908411A patent/NL144922B/xx unknown
  • BE BE478240D patent/BE478240A/xx unknown
• 1948
  • 1948-03-12 CH CH276284D patent/CH276284A/de unknown

Also Published As

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