4. Movable or removable closures
  5. Removable closure

Raymond D. Helferty

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Acoustic drain

Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate

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Orifice sealing physical barrier

Movable or removable closures – Removable closure
Reexamination Certificate

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Orifice sealing physical barrier

Movable or removable closures – Removable closure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-2771019

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