(redirected from Open-Circuit Breathing Apparatus)
OCBAOffice of Consumer and Business Affairs (Australia)
OCBAOrange County Bar Association (California and Florida)
OCBAOcean County Business Association (Toms River, NJ)
OCBAOnondaga County Bar Association (New York)
OCBAOntario Concrete Block Association (Canada)
OCBAOpen-Circuit Breathing Apparatus (product)
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References in periodicals archive ?
Finch did much research and experimentation on early models of both closed- and open-circuit breathing apparatus. During the 1922 Everest expedition, he tested the equipment at altitudes of between 7,000 and 8,300 metres.