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