1868436

Information

• Patent Grant
• 1868436

• References
• Source

• Patent Number

  1,868,436

• Date Filed

  Not available

• Date Issued

  Tuesday, July 19, 1932
  92 years ago

• CPC

  • F28F19/008 - by using scrapers
  • Y10S165/156 - Hollow cylindrical member

• US Classifications

  • 165 - Heat exchange