85594142
Apr 10, 2012
Jan 22, 2013
Horns for loudspeakers; Acoustic couplers; Microphones; Loudspeakers; Megaphones; Sound transmitting apparatus; DVD players; Delay reverberation apparatus for the purpose of modifying musical instrument sounds; Electroacoustic transducers; Cabinets for loudspeakers
Electrical and Scientific Apparatus