2381921

Information

• Patent Grant
• 2381921

• References
• Source

• Patent Number

  2,381,921

• Date Filed

  Not available

• Date Issued

  Tuesday, August 14, 1945
  80 years ago

• CPC

  • B23Q39/042 - with circular arrangement of the sub-assemblies
  • B23C1/10 - with both horizontal and vertical working-spindles
  • Y10T29/513 - Stationary work

• US Classifications

  • 029 - Metal working
  • 101 - Printing
  • 451 - Abrading
  • 470 - Threaded, headed fastener, or washer making: process and apparatus