3114447

Information

• Patent Grant
• 3114447

• References
• Source

• Patent Number

  3,114,447

• Date Filed

  Not available

• Date Issued

  Tuesday, December 17, 1963
  61 years ago

• CPC

  • B41J31/09 - Ink ribbons characterised by areas carrying media for obliteration or removal of typing errors

• US Classifications

  • 400 - Typewriting machines