2194433

Information

• Patent Grant
• 2194433

• References
• Source

• Patent Number

  2,194,433

• Date Filed

  Not available

• Date Issued

  Tuesday, March 19, 1940
  85 years ago

• CPC

  • B08B9/0865 - by burning-out
  • C21D9/08 - for tubular bodies or pipes

• US Classifications

  • 432 - Heating
  • 034 - Drying and gas or vapor contact with solids