4. Brushing, scrubbing, and general cleaning
  5. Machines
  6. With air blast or suction

Andrew Walter McRae Thomson

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Apparatus for separating dirt or dust from an airflow

Liquid purification or separation – Tangential flow or centrifugal fluid action
Reexamination Certificate

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Changover valve

Valves and valve actuation – With means to increase head and seat contact pressure – With positive reduction
Reexamination Certificate

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Cleaner head assembly for a vacuum cleaner

Brushing – scrubbing – and general cleaning – Machines – With air blast or suction
Reexamination Certificate

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Dust separation apparatus

Gas separation – Plural serial basically diverse separating media – Plural stages in unitary casing
Patent

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Dust separation apparatus

Gas separation – With concentrate backflow or re-entrainment preventing means – Baffle intermediate concentrate collector zone and gas...
Patent

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Profile ID: LFUS-PAI-P-2451209

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