Timeline Of Diving Technology
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manned torpedoes, playing a large role in World War II.
1933:
In France, Louis de Corlieu patents the first swimming swimfins.
In San Diego, California, the first sport diving club is started, called the Bottom Scratchers. As far as it is known, it did not use breathing sets; its main aim was spearfishing.
More is known of Yves Le Prieur’s constant-flow open-circuit breathing set. It is said that it could allow a 20 minute stay at 7 meters and 15 minutes at 15 meters. It has one cylinder feeding into a circular fullface mask. Its air cylinder was often worn at an angle to get its on/off valve in reach of the diver’s hand; this would have caused an awkward skew drag in swimming.
1934:
In France, establishment of
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