1489786

Information

• Patent Grant
• 1489786

• References
• Source

• Patent Number

  1,489,786

• Date Filed

  Not available

• Date Issued

  Tuesday, April 8, 1924
  100 years ago

• CPC

  • B01F7/0085 - the stirring devices being composed of two independently driven coaxial rotors facing each other
  • B01F7/00866 - provided with intermeshing elements

• US Classifications

  • 241 - Solid material comminution or disintegration
  • 366 - Agitating