can opener
... that the first can opener was patented in 1855, more than 80 years after the introduction of canned food?
... that the first <b id="mwB8k"><a href="./Can_opener" id="mwB8o" rel="mw:WikiLink" title="Can opener">can opener</a></b> <i id="mwB8s">(original drawing and a modern version pictured)</i> was patented in 1855, more than 80<span id="mwB8w" typeof="mw:Entity"> </span>years after the introduction of canned food?