4. Acoustics
  5. Sound-modifying means
  6. Intensifying horn

Attilio Granziera

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Acoustic unit base for electropneumatic horns

Acoustics – Sound-modifying means – Intensifying horn
Patent

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Signal-horn

Electrical audio signal processing systems and devices – Electro-acoustic audio transducer – Having acoustic wave modifying structure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-585267

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