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Pulsating impeller
Process for transforming gladiolus
Method of controlling Zebra mussels
Process to stabilize wastewater sludge
Production and use of porphyrin derivatives and of compositions containing such derivatives
AC to DC converter system with ripple feedback circuit
High efficiency voltage converter
Production and use of purpurins, chlorins and purpurin- and chlorin-containing compositions
Process for transforming gramineae and the products thereof
Process for transforming corn and the products thereof
Muscarinic agonists
Porphyrin derivatives

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