1403681

Information

• Patent Grant
• 1403681

• References
• Source

• Patent Number

  1,403,681

• Date Filed

  Not available

• Date Issued

  Tuesday, January 17, 1922
  102 years ago

• CPC

  • B29B7/425 - with screw surrounded by a casing provided with grooves or cavities
  • B29B7/401 - having a casing closely surrounding the rotor

• US Classifications

  • 241 - Solid material comminution or disintegration