| 473 / | HD | GAMES USING TANGIBLE PROJECTILE |
| FOR 134 | DF | BALLS (273/58R) {14} |
| FOR 143 | | .~ Football and basketball (273/65R) {6} |
| FOR 144 | DD | .~.~> Closure (273/65A) |
| FOR 145 | DD | .~.~> Bladders (273/65B) |
| FOR 146 | DD | .~.~> Valves: composite (273/65C) |
| FOR 147 | DD | .~.~> Valves: rubber (273/65D) |
| FOR 148 | DD | .~.~> Casings (273/64E) {7} |
| FOR 156 | DD | .~.~> Closure means (273/65F) |