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Chris Swann's The Development of Commercial Helium Diving Presentation at Monterey 2008 Conference, California

2008
Part One
30:51 minutes
 
Part Two
31:40 minutes

 

 
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Wyland
Diving Equipment & Marketing Association
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Subsalve Engineered from the Bottom Up!
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The Way the World Learns to Dive
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Silver Seas, A Restrospective
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Modified 09.04.08