2499765

Information

• Patent Grant
• 2499765

• References
• Source

• Patent Number

  2,499,765

• Date Filed

  Not available

• Date Issued

  Tuesday, March 7, 1950
  75 years ago

• CPC

  • E05B37/20 - Puzzle locks
  • A63F9/08 - Puzzles provided with elements movable in relation
  • B65D55/02 - Locking devices Means for discouraging or indicating unauthorised opening or removal of closure
  • B65D55/14 - Applications of locks
  • Y10T70/7175 - Labyrinthian passage

• US Classifications

  • 206 - Special receptacle or package
  • 070 - Locks
  • 232 - Deposit and collection receptacles