4. Acoustics
  5. Sound-modifying means
  6. Housing or enclosure

Harry A. Alter

Inventor

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Accessible ceiling grid system

Static structures (e.g. – buildings) – Sheetlike element assembled parallel to existing wall,... – Element spaced from wall – ceiling – or floor and held by...
Reexamination Certificate

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Acoustical room paneling and method of installation

Acoustics – Sound-modifying means – Sound absorbing panels
Patent

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Diffuser panel with built-in speaker arrangement and methods of

Acoustics – Sound-modifying means – Housing or enclosure
Patent

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Lighting enclosure

Lighting – Light fixture – Element or attachment
Design Patent

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Profile ID: LFUS-PAI-P-787637

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