2561944

Information

• Patent Grant
• 2561944

• References
• Source

• Patent Number

  2,561,944

• Date Filed

  Not available

• Date Issued

  Tuesday, July 24, 1951
  73 years ago

• CPC

  • E05B19/22 - Keys with devices for indicating whether the last operation was locking or unlocking
  • Y10T70/7802 - Multi-part structures
  • Y10T70/8027 - Condition indicators

• US Classifications

  • 070 - Locks