2390515

Information

• Patent Grant
• 2390515

• References
• Source

• Patent Number

  2,390,515

• Date Filed

  Not available

• Date Issued

  Tuesday, December 11, 1945
  79 years ago

• CPC

  • B25B27/143 - for installing wire thread inserts or tubular threaded inserts
  • Y10T29/53622 - Helical spring
  • Y10T29/53687 - by rotation of work part
  • Y10T29/53691 - Means to insert or remove helix
  • Y10T29/53939 - Thread protector [e.g., wheel axle type]

• US Classifications

  • 029 - Metal working
  • 081 - Tools
  • 411 - Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
  • 470 - Threaded, headed fastener, or washer making: process and apparatus