74326683
Oct 30, 1992
Jun 6, 1995
fasteners used to secure fabric over a wall, ceiling or acoustical elements such as diffusors or absorbers
Metal Goodsinstallation of total room acoustical conditioning systems integrating passive acoustical and fabric upholstered elements, comprising a fastener, at least one acoustical element and fabric removably mountable over the acoustical element using the fastener
Building Construction and Repair