2690664

Information

• Patent Grant
• 2690664

• References
• Source

• Patent Number

  2,690,664

• Date Filed

  Not available

• Date Issued

  Tuesday, October 5, 1954
  70 years ago

• CPC

  • E05B37/0003 - preventing detection of the combination
  • Y10T70/7418 - Dials
  • Y10T70/7424 - Tampering prevention or attach defeating
  • Y10T70/8297 - For combination-operated mechanism

• US Classifications

  • 070 - Locks