Classification Information
Software related to puzzles, such as sudokus and crossword puzzles
Electrical and Scientific ApparatusPrinted matter related to puzzles, such as sudokus and crossword puzzles
Paper Goods and Printed MatterSoftware related to puzzles, such as sudokus and crossword puzzles
Electrical and Scientific ApparatusPrinted matter related to puzzles, such as sudokus and crossword puzzles
Paper Goods and Printed Matter