1420410

Information

• Patent Grant
• 1420410

• References
• Source

• Patent Number

  1,420,410

• Date Filed

  Not available

• Date Issued

  Tuesday, June 20, 1922
  102 years ago

• CPC

  • B23G9/004 - Finishing screws

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 079 - Button making