1886020

Information

• Patent Grant
• 1886020

• References
• Source

• Patent Number

  1,886,020

• Date Filed

  Not available

• Date Issued

  Tuesday, November 1, 1932
  92 years ago

• CPC

  • D21D1/36 - with vertical shaft

• US Classifications

  • 162 - Paper making and fiber liberation
  • 241 - Solid material comminution or disintegration