4172

Information

• Patent Grant
• 4172

• References
• Source

• Patent Number

  4,172

• Date Filed

  Not available

• Date Issued

  Tuesday, September 2, 1845
  179 years ago

• CPC

  • B02C4/26 - in the form of a grid or grating

• US Classifications

  • 241 - Solid material comminution or disintegration