2390394

Information

• Patent Grant
• 2390394

• References
• Source

• Patent Number

  2,390,394

• Date Filed

  Not available

• Date Issued

  Tuesday, December 4, 1945
  79 years ago

• CPC

  • E06B7/06 - with one ventilation wing only

• US Classifications

  • 052 - Static structures
  • 049 - Movable or removable closures
  • 454 - Ventilation