3657085

Information

• Patent Grant
• 3657085

• References
• Source

• Patent Number

  3,657,085

• Date Filed

  Not available

• Date Issued

  Tuesday, April 18, 1972
  53 years ago

• CPC

  • B41M5/262 - recording or marking of inorganic surfaces or materials
  • B44F1/06 - produced by transmitted light
  • C03C23/0025 - by a laser beam
  • C03C23/003 - by X-rays
  • C03C23/004 - by electrons, protons or alpha-particles
  • G02C7/021 - with pattern for identification or with cosmetic or therapeutic effects
  • H01J37/30 - Electron-beam or ion-beam tubes for localised treatment of objects
  • H01J37/301 - Arrangements enabling beams to pass between regions of different pressure
  • B41M5/26 - Thermography; Marking by high energetic means
  • B41M5/267 - Marking of plastic artifacts

• US Classifications

  • 204 - Chemistry: electrical and wave energy
  • 351 - Optics: eye examining, vision testing and correcting