3182873

Information

• Patent Grant
• 3182873

• References
• Source

• Patent Number

  3,182,873

• Date Filed

  Not available

• Date Issued

  Tuesday, May 11, 1965
  60 years ago

• CPC

  • H01L21/3043 - Making grooves
  • B28D5/0047 - using fluid or gas pressure
  • B28D5/0052 - Means for supporting or holding work during breaking
  • 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
  • 257 - Active solid-state devices