4. Brushing, scrubbing, and general cleaning
  5. Machines
  6. With means to pass a solid cleaning agent and a fluid...

Sumio Ando

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Cleaning apparatus for raw material transfer pipe

Brushing – scrubbing – and general cleaning – Machines – With means to pass a solid cleaning agent and a fluid...
Patent

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Duct-cleaning unit

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

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Liquid-sealed type vacuum pump

Pumps – Expansible chamber type – Multiple cyclic outlet paths
Patent

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