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Topics posted by johnyholiday
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PWK References Cited, US Patent 4031318,US Patent 4390078,US Patent 4771466
By johnyholiday, in Technical/Restorations
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AUDIO,ACOUSTICS AND PERCEPTION http://www.gedlee.com/audio.htm
By johnyholiday, in Technical/Restorations
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PWK US Patent 4138594 Small dimension low frequency folded exponential horn loudspeaker with unitary sound path and loudspeaker system including same
By johnyholiday, in Technical/Restorations
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- 313 views