23 MATERIAL HANDLING APPARATUS; MATERIAL HANDLING ATTACHMENTS FOR USE ON OR WITH LIFT TRUCKS-NAMELY, PAPER ROLL CLAMPS, FORK CLAMPS, PUSH ATTACHMENTS, PUSH-PULL ATTACHMENTS, SIDE-SHIFTING ATTACHMENTS, CARTON CLAMPS, BALE CLAMPS, CONCRETE PIPE CLAMPS, BARREL CLAMPS, AND LOAD STABILIZERS; AND BAG AND LOAD TRANSFER AND PALLET STACKERS