4. Electrical audio signal processing systems and devices
  5. Stethoscopes, electrical

Peter R. H. Stark

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Apparatus, and systems for processing and treating a...

Radiant energy – Supported for nonsignalling objects of irradiation – With source support
Reexamination Certificate

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Apparatus, systems and methods for processing and treating a...

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact with electrical or electromagnetic...
Reexamination Certificate

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Apparatus, systems and methods for processing and treating a...

Chemical apparatus and process disinfecting – deodorizing – preser – Process disinfecting – preserving – deodorizing – or sterilizing – Using direct contact with electrical or electromagnetic...
Reexamination Certificate

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Chestpiece of a stethoscope

Medical and laboratory equipment – Equipment for diagnosis – analysis – or treatment – Hand manipulated tool or instrument
Patent

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Electronic stethoscope

Electrical audio signal processing systems and devices – Stethoscopes – electrical
Patent

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Profile ID: LFUS-PAI-P-444338

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