449434

Information

• Patent Grant
• 449434

• References
• Source

• Patent Number

  449,434

• Date Filed

  Not available

• Date Issued

  Tuesday, March 31, 1891
  133 years ago

• CPC

  • A23G9/18 - the products being on the outer wall of a cooled body
  • Y10S165/081 - Rotary heat exchange scraper or scraper for rotary heat exchange surface

• US Classifications

  • 165 - Heat exchange