1789629

Information

• Patent Grant
• 1789629

• References
• Source

• Patent Number

  1,789,629

• Date Filed

  Not available

• Date Issued

  Tuesday, January 20, 1931
  94 years ago

• CPC

  • C14C3/30 - using physical means combined with chemical means

• US Classifications

  • 008 - Bleaching and dyeing