808321

Information

• Patent Grant
• 808321

• References
• Source

• Patent Number

  808,321

• Date Filed

  Not available

• Date Issued

  Tuesday, December 26, 1905
  119 years ago

• CPC

  • F28F5/06 - Hollow screw conveyors
  • B29C47/84 - Heating or cooling the screws
  • Y10S165/149 - having hollow blade

• US Classifications

  • 165 - Heat exchange