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C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
C05B1/10—Apparatus for the manufacture of superphosphates
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FR1064735D1951-07-131952-07-10Perfectionnements aux fours rotatifs
ExpiredFR1064735A
(fr)