4. Drying and gas or vapor contact with solids
  5. Apparatus
  6. With means to treat gas or vapor

Harold Joyce

Examiner

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Access door eliminator for curtain fire dampers

Ventilation – Having inlet airway – Including automatic control means
Patent

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Access door with a double seal

Ventilation – Having inlet airway – With air pump
Patent

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Accessory vent duct outlet protector auxiliary

Ventilation – Having outlet airway – Having readliy movable air regulating louver – damper – or cover
Patent

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Acoustic attenuating curb

Ventilation – Having forced recirculation – Including unitary housing having both inlet and outlet airways
Patent

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Acoustic wind band

Ventilation – Chimney or stack – Chimneytop or stacktop structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2426

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