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04/2017
resumo patente de invenção: "trava de engate de segurança". a presente invenção refere-se ao aparelho e métodos para um dispositivo de segurança secundário... 
EARTH DRILLING, e.g. DEEP DRILLING | FIXED CONSTRUCTIONS | EARTH DRILLING | OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS | MINING
Patent
09/2004, 7
"REAçõES PROMOVIDAS DE HIDROSILAçãO". Refere-se o presente invento a um processo para preparar compostos contendo ligações carbono-silício pela hidrosilação de... 
METALLURGY | APPARATUS THEREFOR | ORGANIC CHEMISTRY | CHEMISTRY | ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM | GENERAL METHODS OF ORGANIC CHEMISTRY
Patent
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