Les Industries Fortier Ltee

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for forming an opening with a gasket in a masonry manhole
- Patent number 4,854,543
- Issue date Aug 8, 1989
- Les Industries Fortier Ltee
- Clement Daigle
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Method for installing gasket in a poured concrete structure
- Patent number 4,842,785
- Issue date Jun 27, 1989
- Les Industries Fortier Ltee
- Clement Daigle
- B28 - WORKING CEMENT, CLAY, OR STONE
Information Patent Grant
Molded elastomeric circular gasket
- Patent number 4,693,482
- Issue date Sep 15, 1987
- Les Industries Fortier Ltee
- Clement Daigle
- B28 - WORKING CEMENT, CLAY, OR STONE