Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
  • H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
• • 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)
• Monitoring And Testing Of Exchanges (AREA)
• Interface Circuits In Exchanges (AREA)
• Structure Of Telephone Exchanges (AREA)
• Data Exchanges In Wide-Area Networks (AREA)
• Alarm Systems (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=31950618

Family Applications (5)

Family Applications After (4)

Country Status (5)

Families Citing this family (1)

• 0
  • NL NL35326D patent/NL35326C/xx active
  • BE BE363110D patent/BE363110A/xx unknown
  • NL NL36364D patent/NL36364C/xx active
  • BE BE358254D patent/BE358254A/xx unknown
  • NL NL37568D patent/NL37568C/xx active
  • BE BE367873D patent/BE367873A/xx unknown
  • BE BE267873D patent/BE267873A/xx unknown
  • BE BE386518D patent/BE386518A/xx unknown
• 1929
  • 1929-02-18 GB GB5373/29A patent/GB306406A/en not_active Expired
  • 1929-02-18 US US340882A patent/US1823978A/en not_active Expired - Lifetime
  • 1929-02-18 FR FR669817D patent/FR669817A/fr not_active Expired
  • 1929-02-25 GB GB6146/29A patent/GB314974A/en not_active Expired
  • 1929-08-15 GB GB24987/29A patent/GB317724A/en not_active Expired
• 1930
  • 1930-02-18 GB GB5431/30A patent/GB349124A/en not_active Expired
  • 1930-02-19 US US429739A patent/US1859776A/en not_active Expired - Lifetime

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