With these patents, however, the edge portions of upper and lower sheets 12 and gusset 14 are supplied to {TAIL ~ a sewing machine} still in the manually engaged form, thus making little contribution to {HEAD ~ the automatic operation} of a fabricsewing machine and labor saving 
With these patents , however , the edge portions of upper and lower sheets 12 and gusset 14 are supplied to { TAIL ~ a sewing machine } still in the manually engaged form , thus making little contribution to { HEAD ~ the automatic operation } of a fabricsewing machine and labor saving
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH