4. Washing, cleaning, or drying machine
  5. Washing, cleaning, or drying machine
  6. Surface treatment, e.g., floor, street, etc.

Robert M. Witter

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Auxiliary cyclonic dust collector

Washing – cleaning – or drying machine – Washing – cleaning – or drying machine – Surface treatment – e.g. – floor – street – etc.
Design Patent

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Auxiliary dust collection system

Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Reexamination Certificate

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Dust collection system

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

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Portable cyclonic dust collection system

Gas separation – With nonliquid cleaning means for separating media – Solid agent cleaning member movingly contacts apparatus
Reexamination Certificate

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Portable cyclonic dust collector

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

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Profile ID: LFUS-PAI-P-2228252

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