Search Results for: Sound reproducing apparatus operated by coins
material (class / ) tunneling pn junction (e.g., esaki diode) device (class / ) in three or more terminal device (class / ) reverse bias tunneling structure (e.g., "backward" diode, true zener diode) (class / ) regenerative type switching device (e.g., scr, comfet, thyristor) (class / ) controlled by
electrodes (class / ) with means to increase breakdown voltage (class / ) with means to lower "on" voltage drop (class / ) device protection (e.g., from overvoltage) (class / ) with means to control triggering (e.g., gate electrode configuration, zener diode firing, dv/dt control, transient control by...
https://patents.justia.com/patents-by-us-classification/257