3220713

Information

• Patent Grant
• 3220713

• References
• Source

• Patent Number

  3,220,713

• Date Filed

  Not available

• Date Issued

  Tuesday, November 30, 1965
  59 years ago

• CPC

  • F28F21/04 - of ceramic of concrete of natural stone
  • F28D17/02 - using rigid bodies
  • Y10S165/053 - Flexible or movable header or header element

• US Classifications

  • 165 - Heat exchange
  • 126 - Stoves and furnaces