1719979

Information

• Patent Grant
• 1719979

• References
• Source

• Patent Number

  1,719,979

• Date Filed

  Not available

• Date Issued

  Tuesday, July 9, 1929
  95 years ago

• CPC

  • B02C15/045 - pressed against the interior of a ring rotating in a vertical plane

• US Classifications

  • 241 - Solid material comminution or disintegration