Gosta Harald Eriksson

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Sodertalje, SW

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Patents Grantslast 30 patents

Information Patent Grant
Manufacture of cellular lightweight concrete slabs
- Patent number 4,083,908
- Issue date Apr 11, 1978
- Internationella Siporex Aktiebolaget
- Oystein Kalvenes
- B28 - WORKING CEMENT, CLAY, OR STONE