3788442

Information

• Patent Grant
• 3788442

• References
• Source

• Patent Number

  3,788,442

• Date Filed

  Not available

• Date Issued

  Tuesday, January 29, 1974
  51 years ago

• CPC

  • B41J35/23 - with two or more ribbon guides
  • B41J29/36 - for cancelling or correcting errors by overprinting
  • B41J33/04 - mounted on moving carriages

• US Classifications

  • 400 - Typewriting machines