What do you thin they were? I know i certainly think there are a few skis which shaped ski design and most of the skis being produced today.
My list(in no specific order):
-Volant Spatula:First R/R ski.
-Salomon Pocket Rocker:First BC jib ski.
-Atomic Powder Plus:First real fat,straight ski.
-Volkl Explosive:First straight, stiff, charging orientated ski.
-Line 1260:First fully symmetrical park ski.
-Rossignol Scratch FS
-K2 hellbent/EP Pro(whichever was first):First soft, rockered super fat BC jib ski.
-Rossignol S7:First ski to incorporate rocker,camber, and reverse sidecut.
-K2 Seth Pistol: Pretty much what most of the 1 ski quiver skis are based off.