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Budapest, HU
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last 30 patents
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Patent Grant
Low-pressure discharge lamp
Patent number
5,285,128
Issue date
Feb 8, 1994
Tungsram Reszvenytarsasag
Gyorgyi Horvath
H01 - BASIC ELECTRIC ELEMENTS
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Patent Grant
Process of surface treating luminescent materials
Patent number
4,689,172
Issue date
Aug 25, 1987
Tungsram Reszvenytarsasag
Andras Czeiler
C09 - DYES PAINTS POLISHES NATURAL RESINS ADHESIVES MISCELLANEOUS COMPOSITION...