VACUUM ELECTRONICS
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BTELECTRONICS
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UDC621.38%621.52
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Descriptor GERVAKUUMELEKTRONIK
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Descriptor ENGVACUUM ELECTRONICS
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Descriptor FREÉLECTRONIQUE SOUS VIDE
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Variant GERELEKTRONIK/VAKUUMELEKTRONIK
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Variant ENGELECTRONICS/VACUUM ELECTRONICS
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Variant FRESOUS VIDE/ÉLECTRONIQUE SOUS VIDE
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RTVACUUM TECHNOLOGY (MECHANICAL ENGINEERING)