Self-holding switch for use in a sound reproducing device
Simple acoustic playback device for a record having plurality of
Simplified acoustic playback apparatus
Simplified record player capable of automatically housing reprod
Simplified sound reproducing device
Simplified sound reproducing device capable of reproducing a plu
Simplified sound reproducing device capable of reproducing a plu
Simplified sound reproducing device driven by a spring motor
Simplified sound reproducing device having a means for preventin
Simplified sound reproducing device having a plurality of extern
Simplified sound reproducing device having a plurality of extern
Simplified sound reproducing device of random selecting type
Simplified sound-reproducing device for a record disc having a p
Simplified sound-reproducing device having an external output sh
Sound generating toy
Sound generator and method for manufacturing the same
Sound record playing apparatus having shock responsive weight me
Sound reproducing apparatus for non-rotating plate-shaped or she
Sound reproducing device
Sound reproducing device driven by a constant torque pull string