Question: can wedge expansion expansion anchor bolts be uninstalled (removed).

I am securing a fire safe (60" H, 435 lbs) to my garage floor -- manufacturer recommends 4 "wedge anchors" of minimum 3" long & 9/16" dia.

Once installed, can the anchors be "unexpanded" for removal, to move the safe ??

I suppose I can buy 4, hand tight one a little, and reverse it to see of the wedge elbow retracts. . .