@misc{6e39071082554e688ec66220af007f97,
title = "Method and Equipment for Attenuating Sound in a Duct",
keywords = "acoustic noise, acoustic signal processing, acoustoelectric devices, noise control, propagation, acoustic noise, acoustic signal processing, acoustoelectric devices, noise control, propagation, acoustic noise, acoustic signal processing, acoustoelectric devices, noise control, propagation",
author = "Seppo Uosukainen and Vesa V{\"a}lim{\"a}ki and Kari Kirjavainen and Jukka Lekkala and Hannu Nyk{\"a}nen",
year = "2005",
language = "English",
type = "Patent",
note = "United States PatentPatent number: US 6,847,722 B1",
}