1856434

Information

• Patent Grant
• 1856434

• References
• Source

• Patent Number

  1,856,434

• Date Filed

  Not available

• Date Issued

  Tuesday, May 3, 1932
  92 years ago

• CPC

  • C09B67/0063 - of organic pigments with only macromolecular substances
  • C09B67/0064 - of phthalocynanines with only macromolecular substances

• US Classifications

  • 008 - Bleaching and dyeing