ES330765A3 - Un procedimiento y aparato relativo para la fabricacion de fibras largas y de finura variable con cualesquiera materias minerales fusibles.
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Un procedimiento y aparato relativo para la fabricacion de fibras largas y de finura variable con cualesquiera materias minerales fusibles.
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ES0330765A1966-08-301966-08-30Un procedimiento y aparato relativo para la fabricacion de fibras largas y de finura variable con cualesquiera materias minerales fusibles.
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