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Brüel and Kjaer (Popularity:  )
http://www.bkhome.com/
Manufactures transducers, instruments and software for sound, acceleration, and vibration measurement and analysis.
Category:
Science - Instruments and Supplies - Laboratory Equipment
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Krell Industries (Popularity: )
http://www.krellonline.com/
US high end manufacturer of KAV product line (CD, amp, preamp), pure class A power amplifier, loudspeaker and Master reference series.
Category:
Business - Consumer Goods and Services - Electronics - Audio
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Bruel & Kjaer (Popularity: )
http://www.bkhome.com/
Provides transducers and complete systems for the measurement and analysis of sound and vibration in a wide range of applications: noise, vibration, sound quality, modal analysis, quality control, and telephone testing .
Category:
Business - Energy and Environment - Environment - Noise and Vibration Control
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