1134625

Information

• Patent Grant
• 1134625

• References
• Source

• Patent Number

  1,134,625

• Date Filed

  Not available

• Date Issued

  Tuesday, April 6, 1915
  110 years ago

• CPC

  • E05B35/12 - requiring the use of two keys
  • Y10T70/675 - Serially operable
  • Y10T70/7774 - False or picking key trapping
  • Y10T70/827 - Attention-directing

• US Classifications

  • 070 - Locks
  • 340 - Communications: electrical