4. Measuring and testing
  5. Liquid level or depth gauge
  6. With illumination

Donald A. Toon

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Borehole packer

Wells – Packers or plugs – Expanded by confined fluid from central chamber – pump or...
Patent

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End-to-end jointing system for tubes and pipes

Pipe joints or couplings – Essential catch
Patent

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Groundwater sampler

Wells – Receptacles – With valved or closed top
Patent

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Groundwater sampling apparatus

Measuring and testing – Sampler – sample handling – etc. – Capture device
Patent

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Liquid-level detector

Measuring and testing – Liquid level or depth gauge – With illumination
Patent

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Profile ID: LFUS-PAI-P-5814

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