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Start Over Subjects Ventilators, Mechanical ✖Remove constraint Subjects: Ventilators, Mechanical Titles A simplified resistance valve for the pneumatic treatment of pulmonary affections ✖Remove constraint Titles: A simplified resistance valve for the pneumatic treatment of pulmonary affections Dates by Range 1850-1899 ✖Remove constraint Dates by Range: 1850-1899

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  • A simplified resistance valve for the pneumatic treatment of pulmonary affections1