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High-definition sound-absorbing screen

Optical: systems and elements – Projection screen – Acoustical
Reexamination Certificate

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Method for the rapid determination of the optical quality of...

Optical: systems and elements – Projection screen – Acoustical
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Motion-picture screen

Optical: systems and elements – Projection screen – Acoustical
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Projection screen

Optical: systems and elements – Projection screen – Acoustical
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Projection screen

Optical: systems and elements – Projection screen – Acoustical
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Projection screen of retractable type

Optical: systems and elements – Projection screen – Acoustical
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System for collecting and displaying images to create a...

Optical: systems and elements – Projection screen – Acoustical
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System for collecting and displaying images to create a...

Optical: systems and elements – Projection screen – Acoustical
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Transparency and backlight for cinema screen

Optical: systems and elements – Projection screen – Acoustical
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