3510982

Information

• Patent Grant
• 3510982

• References
• Source

• Patent Number

  3,510,982

• Date Filed

  Not available

• Date Issued

  Tuesday, May 12, 1970
  54 years ago

• CPC

  • G04F1/066 - using electrical contact device
  • E05F15/78 - using light beams

• US Classifications

  • 049 - Movable or removable closures
  • 160 - Flexible or portable closure, partition, or panel
  • 318 - Electricity: motive power systems
  • 968 - Horology