2808256

Information

• Patent Grant
• 2808256

• References
• Source

• Patent Number

  2,808,256

• Date Filed

  Not available

• Date Issued

  Tuesday, October 1, 1957
  67 years ago

• CPC

  • E05F15/53 - for swinging wings
  • Y10S60/903 - Closures operators

• US Classifications

  • 060 - Power plants
  • 049 - Movable or removable closures
  • 091 - Motors: expansible chamber type
  • 092 - Expansible chamber devices