2219522

Information

• Patent Grant
• 2219522

• References
• Source

• Patent Number

  2,219,522

• Date Filed

  Not available

• Date Issued

  Tuesday, October 29, 1940
  84 years ago

• CPC

  • F02B9/10 - Chamber shapes or constructions

• US Classifications

  • 048 - Gas: heating and illuminating
  • 123 - Internal-combustion engines
  • 219 - Electric heating
  • 392 - Electric resistance heating devices