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DD221595A1
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Method for producing contaminatory diffusion structures in semiconductor material
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DD220192A1
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Circuit for turning on a voltage on a pre-selected phase angle
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DD220168A1
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Digital arrangement to reduce the prella behavior of mechanical relay
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DD222452A1
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Method for mounting semiconductor components
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DD219879A1
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Circuit for the full-dynamic impulse load of electronic components
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DD215866A1
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Circuit for a digital switch phase angle knife
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DD215884A1
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Method of data distribution in micro-computers
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DD216138A1
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Method for manufacturing semiconductor power elements
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DD214491A1
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Process for the pre-treatment of single crystalline semiconductor substrates
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DD214490A1
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Process for librating crystal defects in semiconductor components
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DD213327A1
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Device for preparing disc hollow semiconductor bodies
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DD212296A1
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Contactless supply
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DD218974A1
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Vertical structure of bipolar high voltage power transistors
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DD211204A1
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Process for applying aetzfester oxiday layers
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DD210982A1
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Method and device for humidity determination of shoe
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DD225817A1
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Method for producing high voltage and power transistors
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DD225880A3
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Process for one-sided chemical metallizing of planar-plated discs
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DD225816A1
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Method for producing high voltage power and switching transistors
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