Spirotechnique Shoe
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the “Ohgushi’s Peerless Respirator” was first patented. Invented in 1916 by Riichi Watanabi and the blacksmith Kinzo Ohgushi
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the “Ohgushi’s Peerless Respirator” was first patented. Invented in 1916 by Riichi Watanabi and the blacksmith Kinzo Ohgushi, and used with either surface supplied air or a 150 bar steel scuba cylinder holding 1000 litres free air, the valve supplied air to a mask over the diver’s nose and eyes and the demand valve was operated by the diver’s teeth.







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