Larsen et al.
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Speaker structure
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Le tabouret acoustique
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Haut parleur a membrane asymetrique.
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Zakharchuk
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Loud speaker and other sound-receiving, sound-reproducing, or soundtransmitting apparatus
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Le son vivant par les ondes stationnaires
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Haut-parleur.
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Hygienic resonator for telephones or other sound-transmitting devices.
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Design
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