2256869

Information

• Patent Grant
• 2256869

• References
• Source

• Patent Number

  2,256,869

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1941
  82 years ago

• CPC

  • H04Q1/34 - Impulse regenerators with mechanical or other non-electrical marking arrangements

• US Classifications

  • 379 - Telephonic communications