2169881

Information

• Patent Grant
• 2169881

• References
• Source

• Patent Number

  2,169,881

• Date Filed

  Not available

• Date Issued

  Tuesday, August 15, 1939
  85 years ago

• CPC

  • D01C3/02 - De-gumming silk

• US Classifications

  • 008 - Bleaching and dyeing
  • 123 - Internal-combustion engines