3693955

Information

• Patent Grant
• 3693955

• References
• Source

• Patent Number

  3,693,955

• Date Filed

  Not available

• Date Issued

  Tuesday, September 26, 1972
  52 years ago

• CPC

  • C21D9/663 - Bell-type furnaces

• US Classifications

  • 432 - Heating
  • 266 - Metallurgical apparatus