3850572

Information

• Patent Grant
• 3850572

• References
• Source

• Patent Number

  3,850,572

• Date Filed

  Not available

• Date Issued

  Tuesday, November 26, 1974
  50 years ago

• CPC

  • C21D9/02 - for springs
  • F27B9/10 - heated by hot air or gas
  • F27B9/147 - the charge moving on an inclined floor
  • F27D7/04 - Circulating atmospheres by mechanical means

• US Classifications

  • 432 - Heating