3769455

Information

• Patent Grant
• 3769455

• References
• Source

• Patent Number

  3,769,455

• Date Filed

  Not available

• Date Issued

  Tuesday, October 30, 1973
  51 years ago

• CPC

  • H04N1/40025 - Circuits exciting or modulating particular heads for reproducing continuous tone value scales
  • G05B2219/45212 - Etching, engraving, sculpturing, carving
  • G05B2219/49235 - Control depth as function of grey level of scanned object, map of thickness

• US Classifications

  • 358 - Facsimile and static presentation processing