4. Liquid crystal cells, elements and systems
  5. Particular structure
  6. Interconnection of plural cells in series

John A. Devos

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Cabinet-surface-mounted projection lens and methods

Optics: image projectors – Cabinet encloses projector and one side of screen
Reexamination Certificate

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Dynamic projection screen

Optical: systems and elements – Projection screen
Reexamination Certificate

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Hydrogen generating apparatus

Gas: heating and illuminating – Processes – Fuel mixtures
Reexamination Certificate

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Hydrogen generating apparatus

Gas: heating and illuminating – Generators
Reexamination Certificate

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Hydrogen generating apparatus

Gas: heating and illuminating – Processes – Fuel mixtures
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2272017

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