1820954

Information

• Patent Grant
• 1820954

• References
• Source

• Patent Number

  1,820,954

• Date Filed

  Not available

• Date Issued

  Tuesday, September 1, 1931
  93 years ago

• CPC

  • B28C5/4286 - with mixing screw-blades

• US Classifications

  • 366 - Agitating