1171887

Information

• Patent Grant
• 1171887

• References
• Source

• Patent Number

  1,171,887

• Date Filed

  Not available

• Date Issued

  Tuesday, February 15, 1916
  108 years ago

• CPC

  • C21D9/00 - Heat treatment
  • A21B1/06 - Ovens heated by radiators
  • F27D99/0035 - Heating indirectly through a radiant surface

• US Classifications

  • 432 - Heating