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SELLES BELTRI M CRISTINA
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SELLES BELTRI M CRISTINA
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Juguete giratorio volteable, caracterizado porque está constituido por dos piezas, una de las cuales es forma por una barreta de sección hexagonal eventualmente hueca, en cuyos extremos van fijados dos semi-casquetes esféricos de material flexibles, constituyendo la segunda pieza del fugue, te una barreta, también de acción hexagonal, en cuyos extremos ven fijadas dos esferas que sirven de agarraderas o limitadores del recorrido de la primera pieza.
Processo para a fabricacao de um aldeido 4-hidroxi-benzoico com substituicao nas posicoes 3 e 5; e processo para a fabricacao do aldeido 3,5-di-ter-butil-4-hidroxi-benzoico
Composizione diserbante a base di derivati tiadiazolureici cloro e di cloro terz.butil sostituiti e loro impiego per combattere la vegetazione indesiderata