Now that's one I missed completely. I actually checked fr.wikipedia.org[0] beforehand to be sure, but it made no mention about the force unit, whereas en.wikipedia.org does.

[0] http://fr.wikipedia.org/wiki/Pound which guides one to http://fr.wikipedia.org/wiki/Livre_(unit%C3%A9_de_masse), this one failing to mention the force unit, except as a secondary connection (http://fr.wikipedia.org/wiki/Livre-force) down the page.