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Application filed by Bbc Brown Boveri & Cie, Ingenioer Hermann TrachselfiledCriticalBbc Brown Boveri & Cie
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DK136147AA1946-04-101947-04-02Fremgangsmåde ved fremstilling af cement, hydraulisk kalk eller brændt kalk samt anlæg til udførelse af fremgangsmåden.
DK69877C
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