2305178

Information

• Patent Grant
• 2305178

• References
• Source

• Patent Number

  2,305,178

• Date Filed

  Not available

• Date Issued

  Tuesday, December 15, 1942
  82 years ago

• CPC

  • H04M19/00 - Current supply arrangements for telephone systems
  • Y10S320/14 - Battery acts as buffer
  • Y10T307/625 - Storage battery or accumulator

• US Classifications

  • 320 - Electricity: battery or capacitor charging or discharging
  • 307 - Electrical transmission or interconnection systems