4. Stock material or miscellaneous articles
  5. Structurally defined web or sheet
  6. Including aperture

Andrew R. Spencer

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Porous acoustic element and a method of controlling aerodynamic

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Patent

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Porous laminate and method of manufacture

Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent

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Profile ID: LFUS-PAI-P-710039

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