1224798

Information

• Patent Grant
• 1224798

• References
• Source

• Patent Number

  1,224,798

• Date Filed

  Not available

• Date Issued

  Tuesday, May 1, 1917
  107 years ago

• CPC

  • B01F7/00475 - the discs being made by deforming flat discs

• US Classifications

  • 416 - Fluid reaction surfaces