493115

Information

• Patent Grant
• 493115

• References
• Source

• Patent Number

  493,115

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1893
  131 years ago

• CPC

  • E05B43/00 - Time locks
  • Y10T70/7045 - Emergency release

• US Classifications

  • 070 - Locks