1962139

Information

• Patent Grant
• 1962139

• References
• Source

• Patent Number

  1,962,139

• Date Filed

  Not available

• Date Issued

  Tuesday, June 12, 1934
  90 years ago

• CPC

  • D01F2/26 - from nitrocellulose

• US Classifications

  • 008 - Bleaching and dyeing