Sound absorbing structure
United States Patent 2944622

Inventors:
Mark, Dobbins
Publication Date:
07/12/1960
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Assignee:
FENESTRA INC
Primary Class:
181/294
Other Classes:
52/145
International Classes:
E04B9/00
US Patent References:
2293351Sound absorbing construction
2412713Acoustical tile
2423199Sound deadening panel
2459121Acoustical tile
2550455Trim panel and method of making the same
2600843Process for manufacturing compressible glass fiber shock absorption material and products
2717538Method and apparatus for fissuring fibrous materials
2747470Method and apparatus for fissuring wet felted fiber board
2897551Sound absorbing structure