IT965005B - Tubetto od astuccio di materia plastica
- Google Patents
Tubetto od astuccio di materia plastica
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Publication number
IT965005B
IT965005BIT3015970AIT3015970AIT965005BIT 965005 BIT965005 BIT 965005BIT 3015970 AIT3015970 AIT 3015970AIT 3015970 AIT3015970 AIT 3015970AIT 965005 BIT965005 BIT 965005B
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Foerfarande foer delignifiering av cellulosahaltigt material genom behandling med alkali och syre tillsammans med magnesiumsalter och komplexbildare haerfoer