1644764

Information

• Patent Grant
• 1644764

• References
• Source

• Patent Number

  1,644,764

• Date Filed

  Not available

• Date Issued

  Tuesday, October 11, 1927
  97 years ago

• CPC

  • D01C3/02 - De-gumming silk

• US Classifications

  • 435 - Chemistry: molecular biology and microbiology