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Von Roll Schweiz AG
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Schweizerische Isola Werke AG
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Application grantedgrantedCritical
Publication of FR515792ApublicationCriticalpatent/FR515792A/fr
C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
C08L95/00—Compositions of bituminous materials, e.g. asphalt, tar, pitch
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FR515792A1920-05-191920-05-19Procédé de préparation d'une matière isolante pour protéger des surfaces contre l'influence de l'atmosphère
ExpiredFR515792A
(fr)