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Application filed by Leon Dr LilienfeldfiledCriticalLeon Dr Lilienfeld
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Publication of DK49481CpublicationCriticalpatent/DK49481C/da
DK49481D1931-07-041932-07-02Fremgangsmaade til Fremstilling af Materialer til Kunststoffer og til Fremstilling af disse af de nævnte Materialer.
DK49481C
(da)