{HEAD ~ Another object} of this invention is to provide {TAIL ~ 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 pinching of the tubing 
is to provide
{ HEAD ~ Another object } of this invention is to provide { TAIL ~ 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 pinching of the tubing
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