3786907

Information

• Patent Grant
• 3786907

• References
• Source

• Patent Number

  3,786,907

• Date Filed

  Not available

• Date Issued

  Tuesday, January 22, 1974
  50 years ago

• CPC

  • B41J29/26 - Devices, non-fluid media or methods for cancelling, correcting errors, underscoring or ruling
  • B43L19/0043 - Erasing by electronic or electrolytic means

• US Classifications

  • 400 - Typewriting machines
  • 346 - Recorders
  • 347 - Incremental printing of symbolic information
  • 372 - Coherent light generators