1662749

Information

• Patent Grant
• 1662749

• References
• Source

• Patent Number

  1,662,749

• Date Filed

  Not available

• Date Issued

  Tuesday, March 13, 1928
  97 years ago

• CPC

  • B01F5/0679 - the surfaces being maintained in a fixed position, spaced from each other, therefore maintaining the slit always open
  • B01F5/0665 - the slits being formed between opposed conical or cylindrical surfaces

• US Classifications

  • 138 - Pipes and tubular conduits