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LEMOINE ADOLPHE ALEXANDRE
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LEMOINE ADOLPHE ALEXANDRE
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Application filed by LEMOINE ADOLPHE ALEXANDREfiledCriticalLEMOINE ADOLPHE ALEXANDRE
Application grantedgrantedCritical
Publication of FR324170ApublicationCriticalpatent/FR324170A/fr
Improvements in the Means of Extracting Precipitated Sludge or Solids from the Bottoms of Inverted Coned-shaped Precipitating Tanks for Sewage or Waste Water.