3677219

Information

• Patent Grant
• 3677219

• References
• Source

• Patent Number

  3,677,219

• Date Filed

  Not available

• Date Issued

  Tuesday, July 18, 1972
  52 years ago

• CPC

  • E05B45/02 - with mechanically-operated bells
  • Y10T70/827 - Attention-directing

• US Classifications

  • 116 - Signals and indicators
  • 070 - Locks