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PORTLANDZEMENTWERK WITTEKIND H
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PORTLANDZEMENTWERK WITTEKIND H
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Application filed by PORTLANDZEMENTWERK WITTEKIND HfiledCriticalPORTLANDZEMENTWERK WITTEKIND H
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Publication of FR846231ApublicationCriticalpatent/FR846231A/en
Improvements made to mortars for connecting bricks, annealed or not, and more especially those used in the construction of chimneys, hearths and the like.