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IT2954787U1987-07-311987-07-31Atto a sostenere l'involucro interbicchiere munito di intercapedine no ottenuta prevedendo un risalto anulare interno all'involucro esterno
IT213393Z2
(it)
Foerfarande foer montering av ett i rullform levererat mineralfibermaterial mellan stoed saosom takbjaelkar samt mineralfibermatta laempad foer foerfarandet och ett foerfarande foer dess tillverkning.