4. Electric lamp and discharge devices
  5. Cathode ray tube
  6. Screen

Alexander Lempicki

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Apparatus for controlling the rotation of the plane of linear po

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Audio-visual language teaching apparatus and method

Education and demonstration – Language – Spelling – phonics – word recognition – or sentence formation
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Chromium (III) ordered perovskite lasers and media therefor

Coherent light generators – Particular active media – Insulating crystal
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High neodymium content aluminophosphate glass and laser

Coherent light generators – Particular active media – Amorphous
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Materials for eye protection

Compositions – Light transmission modifying compositions – Displaying color change
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Profile ID: LFUS-PAI-P-166253

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