3382322

Information

• Patent Grant
• 3382322

• References
• Source

• Patent Number

  3,382,322

• Date Filed

  Not available

• Date Issued

  Tuesday, May 7, 1968
  56 years ago

• CPC

  • H04M15/36 - Charging, billing or metering arrangements for party-lines
  • B61L23/005 - Automatic control or safety means for points for operator-less railway
  • G08C19/025 - using fixed values of magnitude of current or voltage
  • H04Q5/02 - with direct connection for all subscribers
  • H04Q5/06 - Signalling by amplitude or polarity of dc

• US Classifications

  • 379 - Telephonic communications
  • 198 - Conveyors: power-driven
  • 340 - Communications: electrical