I've seen knobs that when twisted operate two bolts, however I can't find them online because I don't know what they are called.
An example might be on cabinet where a knob in the center of one door has a bolt to the top and bottom. I think I've seen it usually where the bolts are surface mounted on the inside of the door.
Best Answer
Search for Cremone Bolt. They are a type of cabinet surface bolt latch that operates two rods or bars, usually oriented vertically with a latch bar throwing to the top and the bottom.
Thanks to Van Dyke's Restoration for the pic.