4. Environmental heating and cooling; fluid handling and sanitary e
  5. Heating or cooling
  6. Element or attachment, not elsewhere specified

Larry C. Groenhoff

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Window adapter for portable box fans

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Element or attachment – not elsewhere specified
Patent

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Window frame adapter for portable box fans

Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with mounting means
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