Classifications

• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/26—Devices for calling a subscriber
  • H04M1/30—Devices which can set up and transmit only one digit at a time
  • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M1/00—Substation equipment, e.g. for use by subscribers
  • H04M1/26—Devices for calling a subscriber
  • H04M1/30—Devices which can set up and transmit only one digit at a time
  • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses
  • H04M1/34—Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Mechanical Operated Clutches (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=7218263

Family Applications (1)

Country Status (4)

• 0
  • NL NL216292D patent/NL216292A/xx unknown
  • NL NL126262D patent/NL126262C/xx active
  • NL NL105264D patent/NL105264C/xx active
  • NL NL257119D patent/NL257119A/xx unknown
  • BE BE556738D patent/BE556738A/xx unknown
• 1956
  • 1956-04-17 DE DEK28617A patent/DE1011469B/de active Pending
• 1957
  • 1957-04-15 CH CH355187D patent/CH355187A/de unknown

Also Published As

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