430646

Information

• Patent Grant
• 430646

• References
• Source

• Patent Number

  430,646

• Date Filed

  Not available

• Date Issued

  Tuesday, June 24, 1890
  135 years ago

• CPC

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

• US Classifications

  • 241 - Solid material comminution or disintegration