3920168

Information

• Patent Grant
• 3920168

• References
• Source

• Patent Number

  3,920,168

• Date Filed

  Not available

• Date Issued

  Tuesday, November 18, 1975
  49 years ago

• CPC

  • H01L21/3043 - Making grooves
  • B28D5/0041 - the workpiece being brought into contact with a suitably shaped rigid body which remains stationary during breaking
  • B28D5/0052 - Means for supporting or holding work during breaking
  • Y10T225/325 - With means to apply moment of force to weakened work
  • Y10T225/371 - Movable breaking tool

• US Classifications

  • 225 - Severing by tearing or breaking
  • 257 - Active solid-state devices