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Application filed by Ingenioer Arthur Mc Dougall Du, Ingenioer Woodall Duckham 1920filedCriticalIngenioer Arthur Mc Dougall Du
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Publication of DK35575CpublicationCriticalpatent/DK35575C/da
DK35575D1924-12-291924-12-29Fremgangsmaade og Apparat til Regulering af Koksenes Udtræden af den nederste Ende af en lodret Forkulningsretort.
DK35575C
(da)