Jacques Dufresne

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Montreal, Quebec, CA

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Patents Grantslast 30 patents

Information Patent Grant
Safety electrical assembly for electric power equipment
- Patent number 5,485,339
- Issue date Jan 16, 1996
- Jacques Dufresne
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Emergency light and sump pump operating device for dwelling
- Patent number 5,135,359
- Issue date Aug 4, 1992
- Jacques Dufresne
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Flash flood control units for housing construction
- Patent number 4,928,727
- Issue date May 29, 1990
- Jacques Dufresne
- E03 - WATER SUPPLY SEWERAGE
Information Patent Grant
Metal melting installation
- Patent number 4,664,624
- Issue date May 12, 1987
- Jacques Dufresne
- F27 - FURNACES KILNS OVENS RETORTS
Information Patent Grant
Automatic emergency brake
- Patent number 4,232,768
- Issue date Nov 11, 1980
- Jacques Dufresne
- B66 - HOISTING LIFTING HAULING
Information Patent Grant
Emergency brake
- Patent number 4,132,292
- Issue date Jan 2, 1979
- Jacques Dufresne
- B66 - HOISTING LIFTING HAULING