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Patent Inventor: Hakan Dahlberg
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Ultrasonic transducer system
Inventor: Dahlberg, et al. | Patent Number: 7261823
Ultrasonic transducer system
Inventor: Annersten, legal representative, et al. | Patent Number: 7147755
Method for treating a medium with ultrasonic transducers
Inventor: Dahlberg | Patent Number: 6951616
Dry end surface treatment using ultrasonic transducers
Inventor: Dahlberg | Patent Number: 6942904
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