1556242

Information

• Patent Grant
• 1556242

• References
• Source

• Patent Number

  1,556,242

• Date Filed

  Not available

• Date Issued

  Tuesday, October 6, 1925
  99 years ago

• CPC

  • E05B27/0042 - with additional key identifying function
  • Y10T70/7503 - Tumbler and ward type
  • Y10T70/7554 - Cylinder type with auxiliary tumblers or wards
  • Y10T70/7605 - Pin tumblers
  • Y10T70/7938 - Guard ward

• US Classifications

  • 070 - Locks