2431643

Information

• Patent Grant
• 2431643

• References
• Source

• Patent Number

  2,431,643

• Date Filed

  Not available

• Date Issued

  Tuesday, November 25, 1947
  77 years ago

• CPC

  • H04L7/0095 - with mechanical means
  • Y10T74/1836 - Rotary to rotary

• US Classifications

  • 375 - Pulse or digital communications
  • 074 - Machine element or mechanism