3548928

Information

• Patent Grant
• 3548928

• References
• Source

• Patent Number

  3,548,928

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1970
  54 years ago

• CPC

  • F28D11/02 - the movement being rotary
  • Y10S165/156 - Hollow cylindrical member

• US Classifications

  • 165 - Heat exchange
  • 101 - Printing
  • 219 - Electric heating