Wall structure for sound attenuating apparatus
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United States of America Patent
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Oct 6, 1998
Grant Date -
N/A
app pub date -
Jul 25, 1996
filing date -
Jul 25, 1996
priority date (Note) -
Expired
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Abstract
A sound attenuating apparatus for noise bearing fluid streams wherein elongated perforated wall forming panel sheets include integrally formed indentations extending along a direction transverse the direction of the fluid stream to provide strength and stiffeners for the perforated panel sheets.
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