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DD288960A7
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Semiconductor arrangement of a threshold switch from amorphem semiconductor material
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DD155024A1
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Integrated magnetic head
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DD154752A1
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Magnetic field-controlled threshold switch
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DD157988A3
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Switching element from amorphem semiconductor material
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DD143191A1
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Pressure-controlled threshold switch
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DD143190A1
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Dynamically controlled threshold switch
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DD142627A1
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Magnetic field-controlled via search diode
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DD136900A1
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Circuit arrangement for character input for key elements with thyristoral characteristics
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DD136194A1
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Arrangement for entering directly certified data by multiple switching element
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