DIFF Subgroup
H03K 4/787 using as active elements semiconductor devices with two electrodes and exhibiting a negative resistance characteristic
Introduced: July 1974
Full Title
Generating pulses having essentially a finite slope or stepped portions > having triangular shape > having sawtooth shape > using as active elements semiconductor devices with two electrodes and exhibiting a negative resistance characteristic
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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