4. Acoustics
  5. Sound-modifying means
  6. Muffler, fluid conducting type

William J. Hirt

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Conical spring bushing

Valves and valve actuation – With non-fluid retarder
Reexamination Certificate

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Jet engine noise suppressor

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

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Method of and apparatus for enhancing Coanda flow attachment ove

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils
Patent

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Profile ID: LFUS-PAI-P-1277187

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