3883696

Information

• Patent Grant
• 3883696

• References
• Source

• Patent Number

  3,883,696

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1975
  49 years ago

• CPC

  • H04Q3/521 - using semiconductors in the switching stages
  • H03K17/6221 - combined with selecting means

• US Classifications

  • 379 - Telephonic communications