2990742

Information

• Patent Grant
• 2990742

• References
• Source

• Patent Number

  2,990,742

• Date Filed

  Not available

• Date Issued

  Tuesday, July 4, 1961
  63 years ago

• CPC

  • B23D21/14 - cutting inside the tube
  • Y10T83/393 - Annulus and disc-type tool pair

• US Classifications

  • 083 - Cutting