3717954

Information

• Patent Grant
• 3717954

• References
• Source

• Patent Number

  3,717,954

• Date Filed

  Not available

• Date Issued

  Tuesday, February 27, 1973
  52 years ago

• CPC

  • E05F15/608 - for revolving wings
  • E05Y2201/242 - using threshold speed
  • E05Y2800/234 - of motors and brakes
  • E05Y2900/132 - Doors
  • Y10T74/2186 - Gear casings

• US Classifications

  • 049 - Movable or removable closures
  • 074 - Machine element or mechanism
  • 188 - Brakes