B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 11/04 (2006.01) E04D 1/22 (2006.01) E04D 5/10 (2006.01)
Patent
CA 2643471
The invention relates to a roofing material (20), which is formed by a surface layer (22) of natural stone and a carrier layer (24) of bitumen.
L'invention concerne un matériau de couverture de toit (20) constitué d'une couche de surface (22) en pierres naturelles et d'une couche support (24) en bitume.
Ehrlich Gernot
Harmony Dan
Ehrlich Gernot
Harmony Dan
Johnston Wassenaar Llp
LandOfFree
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