4. Metal working
  5. Method of mechanical manufacture
  6. Assembling or joining

Robert A. Barker

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Air purifier

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Air purifier

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Air purifier

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Controlled isotropic doping of semiconductor materials

Fishing – trapping – and vermin destroying
Patent

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Fan

Environmental heating and cooling; fluid handling and sanitary e – Heating or cooling – Air treatment
Design Patent

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Profile ID: LFUS-PAI-P-355841

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