4. Acoustics
  5. Diaphragm and enclosure
  6. With horn

Thomas J. Bekasi

Inventor

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Ported reflex horn

Acoustics – Diaphragm and enclosure – With horn
Patent

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Siren

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
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Siren speaker

Measuring – testing – or signalling instruments – Security or signal instrument or casing – Aural – i.e. – audible
Design Patent

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Profile ID: LFUS-PAI-P-1365928

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