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Individual
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Individual
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Priority to ES104700UpriorityCriticalpatent/ES104700Y/en
Publication of ES104700UpublicationCriticalpatent/ES104700U/en
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Publication of ES104700YpublicationCriticalpatent/ES104700Y/en
Sack-hopper that is essentially characterized to be constituted by a bag of normal features closed by its upper end by two sheets of suitable section suitably embedded from which are projected the means of anchoring and fixing also characterized because said bag by its embouchure has by a double line of closure of which are projected some homologous sheets of rectangular surface slightly longer than the normal width of the bag itself. (Machine-translation by Google Translate, not legally binding)
ES104700U1964-03-071964-03-07
Hopper bag
ExpiredES104700Y
(en)
A device in conjunction with tubes applicable to the drilling of the earth to perform cement injections. (Machine-translation by Google Translate, not legally binding)