FR706692A - Procédé pour la fabrication d'un produit à phosphure de calcium pouvant servir comme engrais et comme moyen pour combattre les insectes, etc.
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Procédé pour la fabrication d'un produit à phosphure de calcium pouvant servir comme engrais et comme moyen pour combattre les insectes, etc.
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GOTTHARDWERKE A G fur ELEKTROC
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GOTTHARDWERKE A G fur ELEKTROC
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C05B13/00—Fertilisers produced by pyrogenic processes from phosphatic materials
C05B13/02—Fertilisers produced by pyrogenic processes from phosphatic materials from rock phosphates
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FR706692D1929-12-011930-11-28Procédé pour la fabrication d'un produit à phosphure de calcium pouvant servir comme engrais et comme moyen pour combattre les insectes, etc.
ExpiredFR706692A
(fr)