Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Inventor
Ernst Johann Asal
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Individual
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Individual
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Application grantedgrantedCritical
Publication of GB191201772ApublicationCriticalpatent/GB191201772A/en
A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
A63B31/00—Swimming aids
A63B31/08—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs
A63B31/14—Swim fins, flippers or other swimming aids held by, or attachable to, the hands, arms, feet or legs with valve-flaps
Abstract
1772. Asal, E. J. Jan. 22. Swimming - appliances. -A swimming-shoe consists of an open frame a provided with a number of flaps or louvers b which open during the idle stroke as shown and close during the propelling-stroke.
GB191201772D1912-01-221912-01-22Improvements in or relating to Swimming Shoes.
ExpiredGB191201772A
(en)