4. Optics: measuring and testing
  5. By particle light scattering
  6. With photocell detection

Duncan Edward Stephenson

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Measurement of particle size distribution

Optics: measuring and testing – For size of particles – By particle light scattering
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Relating to the measurement of particle size distribution

Optics: measuring and testing – By particle light scattering – With photocell detection
Reexamination Certificate

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Sample handling system

Chemical apparatus and process disinfecting – deodorizing – preser – Analyzer – structured indicator – or manipulative laboratory... – Means for analyzing gas sample
Reexamination Certificate

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