1820771

Information

• Patent Grant
• 1820771

• References
• Source

• Patent Number

  1,820,771

• Date Filed

  Not available

• Date Issued

  Tuesday, August 25, 1931
  93 years ago

• CPC

  • A44B1/28 - with shank and counterpiece
  • Y10T24/3666 - Separate thread bar

• US Classifications

  • 024 - Buckles, buttons, clasps, etc.