4. Measuring and testing
  5. With fluid pressure
  6. Leakage

Richard D. Maryyanek

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Disposable respirator

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent

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Dual filter respirator

Equipment for safety – protection – and rescue – Fire extinguisher or casing therefor – Portable or hand held
Patent

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Filter element

Gas separation – Two or more separators – Plies or layers of different characteristics or orientation
Patent

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Positive pressure test apparatus for facepiece respirator

Measuring and testing – With fluid pressure – Leakage
Patent

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Respirator

Surgery – Respiratory method or device – Means for removing substance from respiratory gas
Patent

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Profile ID: LFUS-PAI-P-734461

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