ric potential results of the heart from more than two patient leads
DE685044C
Arrangement for observing or recording biological action tensions
DE725146C
Arrangement to increase the deflection sensitivity of cathode ray tubes by electron-optical enlargement of the beam deflections
DE745536C
Method to prevent self-excitation in a push-pull amplifier
DE730360C
Device for three-phase vector display of the electrical axis of the heart by means of two amplifiers
DE721009C
Process for generating ultrashort-wave vibrations
DE732305C
Device for the stereoscopic display of the electrical axis of the heart in the form of a resulting vector
DE677606C
Cathode ray tubes, the beam of which is proportionally displaced parallel to the measuring voltage or the measuring current between opposing deflection systems and bent back in its original axial direction
DE733367C
Device for displaying the electrical axis of the heart in the form of a vector
DE720524C
Device for displaying the electrical axis of the heart in the form of a resulting vector
DE697582C
Device for examining the heart on the basis of the bioelectric action voltages or currents of the heart muscles
