Cells In Which Radiation Of Disintegration Heats A Thermoelectric Junction Or A Thermionic Converter [g21h-1/10] *** (devices Where Heating Occurs From Fission Reactions Dig. 39; Discharge Tubes Functioning As Thermionic Generators H01j-45/00; Thermoelectric Devices Comprising A Junction Of Dissimilar Materials H01l-35/00) Patents (Class 976/DIG415)