ES236427A1 - Improvements introduced in striped and square natural slates. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Improvements introduced in striped and square natural slates. (Machine-translation by Google Translate, not legally binding)
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Perfections introduced in scratched and squared natural slates, in different colors, characterized in that the operation is carried out on a wooden board in which the smooth slate has been placed, to be prepared, by means of a comb with the steel and other metal tines, of equal separation of the same ones and that moves, by means of small guiaderas, until the scratching of the slate has been achieved. If a grid is desired, it is given a 90º turn and the same operation is carried out until the new scratch is achieved and since they are perpendicular to the previous lines, their scratch will be on the grid. (Machine-translation by Google Translate, not legally binding)
ES0236427A1957-07-081957-07-08Improvements introduced in striped and square natural slates. (Machine-translation by Google Translate, not legally binding)
ExpiredES236427A1
(en)
A perfection in the obtaining of tables for panels and similar covering material for constructions (Machine-translation by Google Translate, not legally binding)