3509856

Information

• Patent Grant
• 3509856

• References
• Source

• Patent Number

  3,509,856

• Date Filed

  Not available

• Date Issued

  Tuesday, May 5, 1970
  54 years ago

• CPC

  • F22B37/102 - Walls built-up from finned tubes

• US Classifications

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