首页>
外国专利>
A procedure to make it impermeable to water and liquids in general, but not to Air and gases in general, Textile Fibers of origin or nature, natural or artificialIn general, animal or vegetable Protein Fibres, natural or artificial (Wool, Hair, hemp, linen, rayon, Broom, and similar)
A procedure to make it impermeable to water and liquids in general, but not to Air and gases in general, Textile Fibers of origin or nature, natural or artificialIn general, animal or vegetable Protein Fibres, natural or artificial (Wool, Hair, hemp, linen, rayon, Broom, and similar)
