F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 3/28 (2006.01) E03F 7/04 (2006.01) F16K 3/314 (2006.01) F16K 31/04 (2006.01)
Patent
CA 2248505
La présente invention, le système anti-refoulement, est utilisé sur la conduite d'égout d'un bâtiment afin d'empêcher le refoulement des eaux usées provenant du réseau d'égout principal de la municipalité.
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