3672293

Information

• Patent Grant
• 3672293

• References
• Source

• Patent Number

  3,672,293

• Date Filed

  Not available

• Date Issued

  Tuesday, June 27, 1972
  52 years ago

• CPC

  • F24F13/12 - built up of sliding members
  • Y10T137/8192 - Unobvious - "combination lock" type

• US Classifications

  • 454 - Ventilation
  • 137 - Fluid handling
  • 239 - Fluid sprinkling, spraying, and diffusing