2663047

Information

• Patent Grant
• 2663047

• References
• Source

• Patent Number

  2,663,047

• Date Filed

  Not available

• Date Issued

  Tuesday, December 22, 1953
  72 years ago

• CPC

  • E05D15/425 - specially adapted for overhead wings
  • E05Y2201/618 - Transmission ratio variation
  • E05Y2900/106 - for garages
  • Y10T16/82 - Counterbalance device, per se

• US Classifications

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