689768

Information

• Patent Grant
• 689768

• References
• Source

• Patent Number

  689,768

• Date Filed

  Not available

• Date Issued

  Tuesday, December 24, 1901
  123 years ago

• CPC

  • B29C33/68 - Release sheets
  • C21D9/573 - with cooling
  • Y10S165/229 - Screw conveyor in pipe or tank

• US Classifications

  • 165 - Heat exchange
  • 034 - Drying and gas or vapor contact with solids
  • 202 - Distillation: apparatus