DE3713372
KOVACS, MARTA, SIMONYI, ISTVAN, SZELI, GEB. SEGER, MARIA, BUDAPEST, HU, SERES, ISTVAN, GOERGENYI, FRIGYES, EGRI, JANOS, SEBESTYEN, GYULA, MIHOLICS, GIZELLA, FEKETE, MARTON, VAGO, PAL
Year of Publication 19.12.1991
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Year of Publication 19.12.1991
Patent