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Individual
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Individual
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Priority to ES134251ApriorityCriticalpatent/ES134251A1/es
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ES134251A1934-04-111934-04-11Un sistema de proyección luminosa sobre el blanco, aplicable a las armas de fuego, para su utilización en la obscuridad.
ExpiredES134251A1
(es)
Un sistema nuevo de construcción y de pavimentación que excluye y evita el empleo de morteros, mezclas y pegamentos para lograr la unión y trabazón de las distintas piezas o partes.