1420878

Information

• Patent Grant
• 1420878

• References
• Source

• Patent Number

  1,420,878

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1922
  102 years ago

• CPC

  • F28F1/32 - the means having portions engaging further tubular elements
  • Y10S165/504 - Contoured fin surface

• US Classifications

  • 165 - Heat exchange