Apparatus for clamping and transferring to another location a stack of thermoplastic bags or the like wherein the bag walls have varying thicknesses. The apparatus preferably includes sets of clamping jaws for grasping the stack of bags. Each set comprises two pairs of the jaws. One pair is designed...http://www.google.com.au/patents/US4284301?utm_source=gb-gplus-sharePatent US4284301 - Bag transfer device
