3473984

Information

• Patent Grant
• 3473984

• References
• Source

• Patent Number

  3,473,984

• Date Filed

  Not available

• Date Issued

  Tuesday, October 21, 1969
  55 years ago

• CPC

  • C23F1/08 - Apparatus
  • B41C1/188 - characterised by means for liquid etching of cylinders already provided with resist pattern
  • B44B3/00 - Artist's machines or apparatus equipped with tools or work holders moving or able to be controlled substantially two- dimensionally for carving, engraving, or guilloching shallow ornamenting or markings
  • B44C1/22 - Removing surface-material

• US Classifications

  • 216 - Etching a substrate: processes
  • 134 - Cleaning and liquid contact with solids
  • 156 - Adhesive bonding and miscellaneous chemical manufacture