Crossword clues for the word: YALELOCK The word YALELOCK has appeared as an answer to at least 4 crossword clues on different crossword puzzles. Crossword clues for YALELOCK Showing 1 to 4 of 4 results Clue(s) Certain security device Eponymous security device Security device since 1851 Where tumblers have worked since the 1860s