Egysult Izzolampa es Villamossagi Reszvenytarsasag

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Budapest, HU

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Closure structure of electric discharge tubes
- Patent number 4,160,186
- Issue date Jul 3, 1979
- Egysult Izzolampa es Villamossagi Reszvenytarsasag
- Bela Kerekes
- H01 - BASIC ELECTRIC ELEMENTS

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