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PCE
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CPC Subgroup
G10K 11/02

Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators

Full Title

Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general > Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators

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