2300463

Information

• Patent Grant
• 2300463

• References
• Source

• Patent Number

  2,300,463

• Date Filed

  Not available

• Date Issued

  Tuesday, November 3, 1942
  82 years ago

• CPC

  • H04L15/30 - Writing recorders

• US Classifications

  • 178 - Telegraphy
  • 346 - Recorders