CT scanner
... that the first commercially viable CT scanner was invented by Godfrey Hounsfield in 1972?
... that the first commercially viable <b id="mwAU8"><a href="./CT_scan" id="mwAVA" rel="mw:WikiLink" title="CT scan">CT scanner</a></b> was invented by <a href="./Godfrey_Hounsfield" id="mwAVE" rel="mw:WikiLink" title="Godfrey Hounsfield">Godfrey Hounsfield</a> in 1972?