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
  • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
  • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
  • H04M1/2725—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial using electronic memories
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
  • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04Q—SELECTING
  • H04Q5/00—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange
  • H04Q5/02—Selecting arrangements wherein two or more subscriber stations are connected by the same line to the exchange with direct connection for all subscribers, i.e. party-line systems

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Computer Networks & Wireless Communication (AREA)
• Interface Circuits In Exchanges (AREA)
• Medicines Containing Material From Animals Or Micro-Organisms (AREA)
• Alarm Systems (AREA)
• Telephonic Communication Services (AREA)
• Devices For Supply Of Signal Current (AREA)

Applications Claiming Priority (1)

Publications (2)

Family

ID=5952912

Family Applications (1)

Country Status (8)

Families Citing this family (1)

• 1976
  • 1976-06-30 AT AT478276A patent/AT351081B/de not_active IP Right Cessation
  • 1976-07-07 SE SE7607778A patent/SE435884B/xx not_active IP Right Cessation
  • 1976-07-20 NO NO762533A patent/NO141242C/no unknown
  • 1976-07-21 CH CH935676A patent/CH599729A5/xx not_active IP Right Cessation
  • 1976-07-27 FI FI762139A patent/FI61978C/fi not_active IP Right Cessation
  • 1976-07-28 LU LU75483A patent/LU75483A1/xx unknown
  • 1976-07-29 NL NLAANVRAGE7608423,A patent/NL175686C/xx not_active IP Right Cessation
  • 1976-07-30 BE BE169406A patent/BE844714A/xx not_active IP Right Cessation

Also Published As

Similar Documents

Legal Events