Argentine patents and trade marks : with an appendix on patents and trade marks in Uruguay.
De Marval, John Alexander
Argentine patents and trade marks : with an appendix on patents and trade marks in Uruguay. - 1ª ed. - Buenos Aires : S.E., 1948. - 135 páginas : il.
PATENTES
Argentine patents and trade marks : with an appendix on patents and trade marks in Uruguay. - 1ª ed. - Buenos Aires : S.E., 1948. - 135 páginas : il.
PATENTES