I think I found out what this means. I found this pic by chance and it seems to fit. Just I know that there is one more letter after the N in "CANON"
"CANONN DE DURPIS" over "NARANTIE" over "?????? ???????"
"Canon De Surete" over "Garantie" over "Double Peruffe"
Other examples of DIDIER DREVET's work I have found, just not quite the same..
http://translate.google.com/translate?hl=en&sl=fr&tl=en&u=http%3A%2F%2Fwww.naturabuy.fr%2Fjuxtapose-st-etienne-didier-drevet-item-347921.html&anno=2
and
http://translate.google.com/translate?hl=en&sl=ru&u=http://www.ohota-ribalka.com.ua/phpBB2/viewtopic.php%3Ff%3D48%26t%3D6679%26start%3D0&ei=70ooTIa5BIWClAe3g-2zAg&sa=X&oi=translate&ct=result&resnum=10&ved=0CEIQ7gEwCTgo&prev=/search%3Fq%3D%2522didier%2Bdrevet%2522%26start%3D40%26hl%3Den%26client%3Dfirefox-a%26sa%3DN%26rls%3Dorg.mozilla:en-US:official%26ndsp%3D21%26prmd%3Db
