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
  • H04M1/52—Arrangements wherein a dial or the like is mechanically coupled to a line selector
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M9/00—Arrangements for interconnection not involving centralised switching
  • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
• • H—ELECTRICITY
  • H04—ELECTRIC COMMUNICATION TECHNIQUE
  • H04M—TELEPHONIC COMMUNICATION
  • H04M9/00—Arrangements for interconnection not involving centralised switching
  • H04M9/002—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems
  • H04M9/005—Arrangements for interconnection not involving centralised switching with subscriber controlled access to a line, i.e. key telephone systems with subscriber controlled access to an exchange line

Landscapes

• Engineering & Computer Science (AREA)
• Signal Processing (AREA)
• Telephone Set Structure (AREA)
• Mobile Radio Communication Systems (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=4514787

Family Applications (1)

Country Status (6)

Families Citing this family (7)

• 0
  • NL NL39596D patent/NL39596C/xx active
• 1933
  • 1933-03-29 CH CH171887D patent/CH171887A/de unknown
• 1934
  • 1934-03-13 DE DEM126809D patent/DE621714C/de not_active Expired
  • 1934-03-19 GB GB8575/34A patent/GB424534A/en not_active Expired
  • 1934-03-28 FR FR775560D patent/FR775560A/fr not_active Expired
  • 1934-03-29 US US718056A patent/US1992389A/en not_active Expired - Lifetime

Also Published As

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