Another object of this invention is to provide a reel device, as aforesaid, having a tubing reel which selectably pays out or retracts gas tubing in a manner which minimizes or even precludes tangling or {HEAD ~ pinching} of {TAIL ~ the tubing} 
of
Another object of this invention is to provide a reel device , as aforesaid , having a tubing reel which selectably pays out or retracts gas tubing in a manner which minimizes or even precludes tangling or { HEAD ~ pinching } of { TAIL ~ the tubing }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL