with arrangements for varying the size of the swimming surface

Full Title

Swimming aids > Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs > with arrangements for varying the size of the swimming surface

Classification Context

Section:

HUMAN NECESSITIES

Class:

SPORTS; GAMES; AMUSEMENTS

Subclass:

APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT