3581030

Information

• Patent Grant
• 3581030

• References
• Source

• Patent Number

  3,581,030

• Date Filed

  Not available

• Date Issued

  Tuesday, May 25, 1971
  54 years ago

• CPC

  • H01H36/0046 - Limit switches, also fail-safe operation or anti-tamper considerations
  • G05B19/16 - using magnetic record carriers
  • G06K7/088 - using magneto-sensitive switches
  • G07C9/00023 - the system having a variable access-code
  • G07F7/00 - Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
  • G07F7/02 - by keys or other credit registering devices
  • G07F7/086 - by passive credit-cards adapted therefor
  • H01H36/0066 - magnet being removable
  • Y10T70/7057 - Permanent magnet

• US Classifications

  • 200 - Electricity: circuit makers and breakers
  • 070 - Locks
  • 235 - Registers
  • 335 - Electricity: magnetically operated switches, magnets, and electromagnets