2175291

Information

• Patent Grant
• 2175291

• References
• Source

• Patent Number

  2,175,291

• Date Filed

  Not available

• Date Issued

  Tuesday, October 10, 1939
  86 years ago

• CPC

  • F27D1/1684 - by a special coating applied to the lining
  • F27D7/02 - Supplying steam, vapour, gases, or liquids

• US Classifications

  • 432 - Heating
  • 266 - Metallurgical apparatus