1303470

Information

• Patent Grant
• 1303470

• References
• Source

• Patent Number

  1,303,470

• Date Filed

  Not available

• Date Issued

  Tuesday, May 13, 1919
  106 years ago

• CPC

  • F28F5/06 - Hollow screw conveyors
  • B29C47/0009 - characterised by the shape of the articles
  • B29C47/84 - Heating or cooling the screws
  • B29C47/845 - cooling
  • Y10S165/149 - having hollow blade

• US Classifications

  • 165 - Heat exchange