cam follower
... that the cam follower, which is a specialized type of roller bearing designed to follow cams, was invented in 1937 by the McGill corporation?
... that the <b id="mwATc"><a href="./Cam_follower" id="mwATg" rel="mw:WikiLink" title="Cam follower">cam follower</a></b>, which is a specialized type of <a href="./Rolling-element_bearing" id="mwATk" rel="mw:WikiLink" title="Rolling-element bearing">roller bearing</a> designed to follow <a class="mw-disambig" href="./Cam" id="mwATo" rel="mw:WikiLink" title="Cam">cams</a>, was invented in 1937 by the McGill corporation?