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Date: 2014-12-22 23:38:18Headphones Physics Acoustic shock Telephone exchange Acoustics Sound Waves | COMMUNICATIONS ALLIANCE LTD INDUSTRY GUIDELINE G616:2013 ACOUSTIC SAFETY FOR TELEPHONE EQUIPMENTAdd to Reading ListSource URL: www.commsalliance.com.auDownload Document from Source WebsiteFile Size: 923,50 KBShare Document on Facebook |