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Application filed by Abram Johannes Nicol Graafland, Frederik Jan Dr In NellensteynfiledCriticalAbram Johannes Nicol Graafland
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Publication of DK44780CpublicationCriticalpatent/DK44780C/da
DK44780D1929-09-121930-09-06Fremgangsmaade til Fremstilling af et Beskyttelsesmiddel mod Bevoksning med og Beskadigelse ved Organismer i Vand.
DK44780C
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