[CR]single-sided dual derailleur levers

Were single-sided dual derailleur levers such as Huret's Louison Bobet model (see http://members.aol.com/SatoruMas/brands/huretSLB.html) designed only for rear derailleurs with push & pull cables

or were they designed for front & rear derailleurs?

I ask because one of my bikes has:

simplex dropouts (hanger has no threads) single sided lever braze-on with a long headless bolt dual cable pulley on drive side of bottom bracket

Did anybody make a cable operated front derailleur that had a drive side cable attachment?

Amir Avitzur near the national stadium, in Ramat-Gan Israel