1893444

Information

• Patent Grant
• 1893444

• References
• Source

• Patent Number

  1,893,444

• Date Filed

  Not available

• Date Issued

  Tuesday, January 3, 1933
  92 years ago

• CPC

  • B23G9/006 - Slotting nuts

• US Classifications

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