3906670

Information

• Patent Grant
• 3906670

• References
• Source

• Patent Number

  3,906,670

• Date Filed

  Not available

• Date Issued

  Tuesday, September 23, 1975
  49 years ago

• CPC

  • E21F1/10 - Air doors
  • Y10T16/53235 - including screw-operated means to move hinged members
  • Y10T16/5329 - having interdigitated surfaces or slot for hinge-to-member fastener

• US Classifications

  • 049 - Movable or removable closures
  • 016 - Miscellaneous hardware