872222

Information

• Patent Grant
• 872222

• References
• Source

• Patent Number

  872,222

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1907
  117 years ago

• CPC

  • F28F19/008 - by using scrapers
  • Y10S165/089 - for scraping flat horizontal surface

• US Classifications

  • 165 - Heat exchange
  • 122 - Liquid heaters and vaporizers