{HEAD ~ This invention} relates in general to an apparatus and method for determining {TAIL ~ the density} of insulation, and in particular, to an apparatus and method for determining the density of a loose fill, blown in place fibrous insulation 
{ HEAD ~ This invention } relates in general to an apparatus and method for determining { TAIL ~ the density } of insulation , and in particular , to an apparatus and method for determining the density of a loose fill , blown in place fibrous insulation
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