Jillions of Peugeots in the 80's were sold with Philippe Guidon bars with Atax stems. they looked very nic, and the bends were appropriate enough for the intended uses of the bikes, but IIRC, they were very light but they were quite flexy and seemed to be made from thinner gauge aluminum tubing, compared to most other brands.
I've only heard of/seen the Phillipe bars, this is the first time I've seen a "Philippe" bike.

Chombi