1920149

Information

• Patent Grant
• 1920149

• References
• Source

• Patent Number

  1,920,149

• Date Filed

  Not available

• Date Issued

  Tuesday, July 25, 1933
  91 years ago

• CPC

  • B28C5/4275 - with a drum rotating about a horizontal axis

• US Classifications

  • 366 - Agitating