-
-
-
Set of paving stones
-
Patent number 6,168,347
-
Issue date Jan 2, 2001
-
Groupe Permacon Inc.
-
Eric Milot
-
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
-
-
Retaining wall system
-
Patent number 6,024,517
-
Issue date Feb 15, 2000
-
Groupe Permacon Inc.
-
Bertin Castonguay
-
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
-
Retaining wall system
-
Patent number 5,735,643
-
Issue date Apr 7, 1998
-
Groupe Permacon Inc.
-
Bertin Castonguay
-
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING