3020523

Information

• Patent Grant
• 3020523

• References
• Source

• Patent Number

  3,020,523

• Date Filed

  Not available

• Date Issued

  Tuesday, February 6, 1962
  63 years ago

• CPC

  • E05B45/0605 - for preventing of leaving the key
  • Y10T70/8432 - For key-operated mechanism

• US Classifications

  • 340 - Communications: electrical
  • 070 - Locks
  • 200 - Electricity: circuit makers and breakers