4. Gas separation
  5. Combined or convertible
  6. In environmental air enclosure

Lawrence E. Wetzel

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Air flow balancing fire damper

Stoves and furnaces – Stoves – Cooking
Patent

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Clean room module

Heat exchange – With valve or movable deflector for heat exchange fluid flow – With by-pass of heat exchanger or heat exchanger section
Patent

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Environmental control unit for hospital room

Refrigeration – Gas controller or director – Cooled gas directed relative to cooled enclosure
Reexamination Certificate

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Gasket seal for filter unit

Gas separation – Combined or convertible – In environmental air enclosure
Patent

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Room air sterilizer

Chemical apparatus and process disinfecting – deodorizing – preser – For deodorizing of – or chemical purification of – or... – With means exposing gas to electromagnetic wave energy or...
Patent

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Profile ID: LFUS-PAI-P-200155

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