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analogifremgangsmade for the manufacture of derivatives of dibenzo (a, d) - cycloheptatrien or dibenzo (a, d) - cycloheptadien or their salts or additionssalte with nitrogenous bases
analogifremgangsmade for the manufacture of derivatives of dibenzo (a, d) - cycloheptatrien or dibenzo (a, d) - cycloheptadien or their salts or additionssalte with nitrogenous bases