ES120937A1 - Un procedimiento para carbonizar los aglomerados de carbones minerales y de sus coques con aglutinante breoso, alquitranoso o de naturaleza semejante.
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Un procedimiento para carbonizar los aglomerados de carbones minerales y de sus coques con aglutinante breoso, alquitranoso o de naturaleza semejante.
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ES120937A1930-12-021930-12-02Un procedimiento para carbonizar los aglomerados de carbones minerales y de sus coques con aglutinante breoso, alquitranoso o de naturaleza semejante.
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