3638197

Information

• Patent Grant
• 3638197

• References
• Source

• Patent Number

  3,638,197

• Date Filed

  Not available

• Date Issued

  Tuesday, January 25, 1972
  52 years ago

• CPC

  • G06F3/09 - Digital output to typewriters
  • B41J2/34 - comprising semiconductors
  • B41J19/20 - Positive-feed character-spacing mechanisms

• US Classifications

  • 358 - Facsimile and static presentation processing
  • 347 - Incremental printing of symbolic information
  • 400 - Typewriting machines