1966 Cyclo-Pedia TTT page 52 shows 'T.T.T. ALLOY BARS' with 6 different bends named after / designed with the input of famous racers:

Jaques Anquetil
Louison Bobet
Nino Defilippis
Fausto Coppi

I'm not sure about Fr. Belga, maybe I'm being dim or someone can shed some light on it, not sure if it's something to do with Belgium or Belgians and interesting to see there's a Pista designated bend already.