1806589

Information

• Patent Grant
• 1806589

• References
• Source

• Patent Number

  1,806,589

• Date Filed

  Not available

• Date Issued

  Tuesday, May 26, 1931
  93 years ago

• CPC

  • C04B41/009 - characterised by the material treated
  • C04B41/5361 - Etching with molten material
  • C04B41/91 - involving the removal of part of the materials of the treated articles
  • C30B29/26 - with formula BMe2O4, wherein B is Mg, Ni, Co, Al, Zn, or Cd and Me is Fe, Ga, Sc, Cr, Co, or Al
  • G04B31/06 - Manufacture or mounting processes

• US Classifications

  • 428 - Stock material or miscellaneous articles
  • 065 - Glass manufacturing
  • 216 - Etching a substrate: processes
  • 427 - Coating processes
  • 968 - Horology