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Alain Ratte
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Terrebonne, CA
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last 30 patents
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Patent Grant
Method and apparatus for forming a precast curb system
Patent number
5,139,721
Issue date
Aug 18, 1992
Groupe Permacon Inc.
Bertin Castonguay
B28 - WORKING CEMENT, CLAY, OR STONE
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Patent Grant
Molded curb-stone
Patent number
D315026
Issue date
Feb 26, 1991
Groupe Permacon Inc.
Bertin Castonguay
D25 - Building units and construction elements
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Patent Grant
Precast curb system
Patent number
4,971,475
Issue date
Nov 20, 1990
Groupe Permacon Inc.
Bertin Castonguay
B28 - WORKING CEMENT, CLAY, OR STONE