2665153

Information

• Patent Grant
• 2665153

• References
• Source

• Patent Number

  2,665,153

• Date Filed

  Not available

• Date Issued

  Tuesday, January 5, 1954
  71 years ago

• CPC

  • G07C9/00658 - operated by passive electrical keys
  • F15B21/08 - Servomotor systems incorporating electrically operated control means
  • Y10S16/07 - Door opening apparatus
  • Y10T292/1021 - Motor

• US Classifications

  • 292 - Closure fasteners
  • 016 - Miscellaneous hardware
  • 049 - Movable or removable closures
  • 250 - Radiant energy
  • 251 - Valves and valve actuation
  • 378 - X-ray or gamma ray systems or devices