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  • 2009-02-14T23:49:08Z Mike.lifeguard 2382x2022 (544296 Bytes) {{Information |Description={{en|1=6 examples of acoustic filters.}} |Source=Own work by uploader |Author=[[User:Mike.lifeguard|Mike.lifeguard]] |Date=~~~~~ |Permission= |other_versions= }} [[Category:Audiology]]

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