Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q3/00—Selecting arrangements
  • H04Q3/0016—Arrangements providing connection between exchanges
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
  • H04L12/00—Data switching networks

Landscapes

• Engineering & Computer Science (AREA)
• Computer Networks & Wireless Communication (AREA)
• Signal Processing (AREA)
• Relay Circuits (AREA)
• Structure Of Telephone Exchanges (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=10259990

Family Applications (1)

Country Status (4)

• 0
  • BE BE440574D patent/BE440574A/xx unknown
• 1939
  • 1939-06-30 GB GB19117/39A patent/GB534459A/en not_active Expired
• 1940
  • 1940-09-17 FR FR867216D patent/FR867216A/fr not_active Expired
• 1947
  • 1947-09-27 CH CH274629D patent/CH274629A/de unknown

Also Published As

Similar Documents