1457607

Information

• Patent Grant
• 1457607

• References
• Source

• Patent Number

  1,457,607

• Date Filed

  Not available

• Date Issued

  Tuesday, June 5, 1923
  101 years ago

• CPC

  • D06P1/34 - using natural dyestuffs
  • D06P3/045 - dyeing and degumming silk

• US Classifications

  • 008 - Bleaching and dyeing