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ES60062A1915-03-231915-03-23Una máquina perfeccionada para el cosido de las varillas al telaje de paraguas, sombrillas y parasoles.
ExpiredES60062A1
(es)
Un resultado industrial consistente en el cosido mecánico de las varillas de los paraguas a las telas, en puntos intermedios de la longitud de aquellas.
Una máquina o conjunto mecánico aplicable a la descomposición y regeneración del carbonato de magnesio natural llamado giobertita, para obtener el mismo carbonato exento de impurezas.