3667661

Information

• Patent Grant
• 3667661

• References
• Source

• Patent Number

  3,667,661

• Date Filed

  Not available

• Date Issued

  Tuesday, June 6, 1972
  52 years ago

• CPC

  • B28D5/0047 - using fluid or gas pressure
  • Y10T225/12 - With preliminary weakening
  • Y10T225/325 - With means to apply moment of force to weakened work

• US Classifications

  • 225 - Severing by tearing or breaking