The First Functional Scuba
The Roquayol-Denayrouze Aerophere While many people conjure images of Jacques Cousteau and his iconic red cap when considering the beginnings of scuba, our story actually starts much earlier, in the 19th century. The first true demand valve regulator was patented by Frenchman Manuel Théodore Guillaumet in 1838. A demand valve regulator allows a diver to […]
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