4. Optics: measuring and testing
  5. By dispersed light spectroscopy
  6. Utilizing a spectrometer

David T. Williams

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Catalyst and catalytic process

Chemistry of inorganic compounds – Hydrogen or compound thereof – Elemental hydrogen
Patent

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Safety switch

Electricity: circuit makers and breakers – Switch activation inhibitor – Removable actuator
Reexamination Certificate

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Spectrometer system

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent

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