4. Liquid purification or separation
  5. Recirculation

Robert A. Benson

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Aircraft engine

Internal-combustion engines – Multiple cylinder – Cylinders radiating
Patent

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Exchanger of wall clearing shuttles

Brushing – scrubbing – and general cleaning – Implements – Pipe – tube – or conduit cleaner
Reexamination Certificate

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Filter apparatus

Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent

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Filtering apparatus

Liquid purification or separation – Recirculation
Patent

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Fluid detecting

Communications: electrical – Condition responsive indicating system – Specific condition
Patent

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Profile ID: LFUS-PAI-P-485377

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