2252875

Information

• Patent Grant
• 2252875

• References
• Source

• Patent Number

  2,252,875

• Date Filed

  Not available

• Date Issued

  Tuesday, August 19, 1941
  83 years ago

• CPC

  • H04M1/34 - Lost-motion or other arrangements for ensuring a pause between successive digit transmissions

• US Classifications

  • 379 - Telephonic communications