Patent classifications
H
ELECTRICITY
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H03
ELECTRONIC CIRCUITRY
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H03K
PULSE TECHNIQUE
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17/00
Electronic switching or gating, i.e. not by contact-making and –breaking
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H03K17/51
characterised by the components used
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H03K17/78
using opto-electronic devices, i.e. light-emitting and photoelectric devices electrically- or optically-coupled
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H03K17/795
controlling bipolar transistors
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H03K17/7955
using phototransistors
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