If you fusion summoned chimeratech overdragon using cyber dragon cyber laser dragon and 3 other machine monsters if you used de-fusion would you be able to special summon cyber laser dragon back

Cyber Laser Dragon cannot be special summoned 'except' by following the text on its own card. Even if you properly special summon it by this method, you cannot resummon it from the graveyard by cards like Monster Reborn, or De-Fusion.