"Gagnan" is pronounced as "gan-yuhn" with the emphasis on the first syllable.
Émile Gagnan was born in 1900.
They obtained a patent for the first Aqua-Lung in 1943, primarily due to the regulator Gagnan perfected and Cousteau tested. (Gagnan could not swim)
Emile Gagnan
Two French men, Jacques-Yves Cousteau (June 10, 1910-June 25, 1997) and Emile Gagnan (November 1900-1979) invented the Aqualung in 1943. It was the first open-circuit free-swimming underwater breathing set.Jacques Cousteau amd Emile Gagnan.It was invented in 1943 by Jacques Yves Cousteau and Emil Gagnan. Wikipedia has a detailed page on the subject - see related link.
Emile Gagnan and Jacques-Yves Cousteau .
Invented in 1942-1943 ish. I have seen both in my research on Jacques Cousteau and Emile Gagnan.
Emilie Gagnan and Jacques-Yves Cousteau developed the first commercially used scuba equipment.
The first commercially successful SCUBA systems were developed by Emile Gagnan and Jacques-Yves Cousteau.
Both it was Jacques Cousteau and Emile Gagnan who invented the modern scuba gear in 1942.
Jacques Yves Cousteau and Emile Gagnan worked together in 1942 and created the first SCUBA unit.
He invented the Aqua-Lung withe the help of Emile Gagnan. <http://www.notablebiographies.com/Co-Da/Cousteau-Jacques.html>
1943Emile Gagnan and Jacques Cousteau invented the modern demand regulator and an improved autonomous diving suit. In 1942, redesigned a car regulator and invented a demand regulator that would automatically fresh air when a diver breathed. A year later in 1943, Cousteau and Gagnan began selling the Aqua-Lung.