Etat Francais, represente par le: Laboratoire Central Des Ponts et Chaussees

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Patents Grantslast 30 patents

Information Patent Grant
Insulating and structural masonry block and method for the fabricat...
- Patent number 5,115,602
- Issue date May 26, 1992
- Etat Francais, represente par le: Laboratoire Central Des Ponts et Chaussees
- Francois de Larrard
- B28 - WORKING CEMENT, CLAY, OR STONE