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Blood pressure and pulse indicator
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Automatic means for tympanometric testing
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Apparatus for measuring pulse frequency
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Method of measuring intrathoracic pressure
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Drew et al.
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Characteristics of the Vitalograph spirometer |
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Kraftmesseinrichtung.
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Blood pressure measuring devices with variable frequency recorder and linearized leak means
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Digital sphygmomanometer
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Thomas et al.
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Calibration of condenser microphones under increased atmospheric pressures |
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Human eye-pressure measuring equipment - has additional membrane with micrometer pressure adjustment for tonometer chamber
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Electric sphygmomanometer
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Perfeccionamientos en instrumentos para registrar la presionsanguinea.
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Attachment for vascular recording apparatus
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Improvements in pressure transducers
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Ангиограф
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Oscillograph
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Blood pressure recording instrument |
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一种病患用测量装置及其控制系统
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