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Filing date
Publication date
Application filed by Smidth & Co As F LfiledCriticalSmidth & Co As F L
Priority to DK396050ApriorityCriticalpatent/DK86654C/da
Application grantedgrantedCritical
Publication of DK86654CpublicationCriticalpatent/DK86654C/da
DK396050A1950-12-131950-12-13Varmeudveksler til kontinuerlig, indirekte varmeudveksling mellem en væske eller en luftart og et pulverformigt materiale.
DK86654C
(da)