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Inventor
HILZENSAUER VOLKMAR
AT
2 patents
Patents
2 patents
US4093488A
Jun 6, 1978
Process for the production of building material elements, particularly building boards
ISOVOLTA
11 citations
68
US4201833A
May 6, 1980
Building material elements, particularly building boards, and a process for their production
ISOVOLTA
6 citations
57