4. Ventilation
  5. Workstation ventilator
  6. Covered workbench chamber

J. David Wharton

Attorney

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Aquarium with provision for cascading waterfall

Animal husbandry – Aquarium – fish bowl – or stand therefor
Design Patent

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Battery charging clamp

Electrical connectors – Metallic clamp-type connector for storage battery terminal – Spring-actuated or resilient clamp
Reexamination Certificate

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Delivery system for applying a treatment material to animals

Animal husbandry – Antivermin treating or cleaning – Means engaging animal directly; e.g. – daubing or rubbing means
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Expansion ring for mass transfer column and method employing...

Gas and liquid contact apparatus – Contact devices – Wet baffle
Reexamination Certificate

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Filtration element employing improved backwash feature and...

Liquid purification or separation – Processes – Separating
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Profile ID: LFUS-PAI-P-2543375

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