4. Fluent material handling, with receiver or receiver coacting mea
  5. With conveying means to supply successive receivers
  6. Conveyer with additional receiver conveying or manipulating...

John J. Achen

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Combustion air security vent

Ventilation – Having inlet airway – Sleeved vent for ceiling – wall – or floor
Reexamination Certificate

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Combustion air vent with side retainers

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

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Combustion air vent with top and bottom retainers

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

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Combustion air wall vent

Ventilation – Having inlet airway – Including specific cover or shield for exterior vent opening
Reexamination Certificate

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Fixed configuration vent

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

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Profile ID: LFUS-PAI-P-817406

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