336741

Information

• Patent Grant
• 336741

• References
• Source

• Patent Number

  336,741

• Date Filed

  Not available

• Date Issued

  Tuesday, February 23, 1886
  138 years ago

• CPC

  • C21D9/00 - Heat treatment
  • A21B1/145 - Radiators consisting of tubes

• US Classifications

  • 432 - Heating