1899221

Information

• Patent Grant
• 1899221

• References
• Source

• Patent Number

  1,899,221

• Date Filed

  Not available

• Date Issued

  Tuesday, February 28, 1933
  92 years ago

• CPC

  • B23G9/005 - Working nuts
  • Y10T409/305488 - to reciprocate or oscillate work
  • Y10T409/305544 - with work holder

• US Classifications

  • 470 - Threaded, headed fastener, or washer making: process and apparatus
  • 409 - Gear cutting, milling, or planing