David Mitchell

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Stanstead, CA

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Patents Grantslast 30 patents

Information Patent Grant
Collapsible warning device and method for emitting a light signal
- Patent number 11,532,216
- Issue date Dec 20, 2022
- SIGNALISATION D'URGENCE RH INC.
- Raymond Houle
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
COLLAPSIBLE WARNING DEVICE AND METHOD FOR EMITTING A LIGHT SIGNAL
- Publication number 20200082680
- Publication date Mar 12, 2020
- SIGNALISATION D'URGENCE RH INC.
- Raymond Houle
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES