76120050
Sep 1, 2000
Jul 2, 2002
Non-metal integrated ceiling system comprised of normal ceiling panels with a visual design of the panels exposed face, a special ceiling panel, with embedded antennas for wireless communication, with an exposed face that looks like the other normal ceiling panel visual design, and/or, a special ceiling panel with a support structure, a sound radiating member and an exposed face that looks like the other normal ceiling panels
Nonmetallic Building Materials