1438336

Information

• Patent Grant
• 1438336

• References
• Source

• Patent Number

  1,438,336

• Date Filed

  Not available

• Date Issued

  Tuesday, December 12, 1922
  102 years ago

• CPC

  • E05B19/0017 - Key profiles
  • E05B19/007 - with U- or V-shaped cross-section
  • Y10T70/7605 - Pin tumblers
  • Y10T70/7791 - Keys
  • Y10T70/7836 - Plural shanks, stems or bit wings
  • Y10T70/7864 - Cylinder lock type
  • Y10T70/7887 - Frangible
  • Y10T70/8595 - Key guides, internal

• US Classifications

  • 070 - Locks