Electron microscope, in which substances that emit electrons are shown on a larger scale
DE555322C
Movable sluice for introducing objects into vessels with high overpressure or underpressure
DE548916C
Tiltable electron tube circuit with two stable equilibrium positions, especially for recording and registering one-time, very fast processes, e.g. B. with the cathode ray oscillograph
DE579974C
Device for lateral or longitudinal displacement of the deflection plates of a cathode ray oscilloscope
DE615023C
Gas discharge tubes for the generation of cathode rays, especially for cathode ray oscillographs, especially for cathode ray oscillographs
