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Application filed by Herbert Edwards KrenchelfiledCriticalHerbert Edwards Krenchel
Priority to DK281348ApriorityCriticalpatent/DK71778C/da
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Publication of DK71778CpublicationCriticalpatent/DK71778C/da
DK281348A1948-09-111948-09-11Fremgangsmåde til fremstilling af kunststen ved blanding af kunstig mineraluld og cement eller en tør cement-sandblanding.
DK71778C
(da)