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Application filed by Kamata Masahiro, Katayama Shitomi, Mons Francis Y Porter RobertfiledCriticalKamata Masahiro
Priority to AR30461286ApriorityCriticalpatent/AR243640A1/es
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Publication of AR243640A1publicationCriticalpatent/AR243640A1/es
AR30461286A1986-07-241986-07-24Un dispositivo para usar en la exploracion geofisica de formaciones terrestres recorridas por una perforacion.
AR243640A1
(es)