ROOF BOARDING HEAT INSULATION
KALMAR,FERENC,HU, GERGELY,ISTVAN,HU, FABIAN,LAJOS,HU, BOERZSEI,JANOS,HU, BOGNAR,JOZSEF,HU, SZELENYI,ZOLTAN,HU, VARGA,FERENC,HU
Year of Publication 28.08.1985
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Year of Publication 28.08.1985
Patent