Grotrian-Steinweg
... that a trademark dispute between piano makers Steinway & Sons and Grotrian-Steinweg resulted in establishing the legal concept of "initial interest confusion"?
... that a <a href="./Trademark" id="mwBnc" rel="mw:WikiLink" title="Trademark">trademark</a> dispute between piano makers <a href="./Steinway_&amp;_Sons" id="mwBng" rel="mw:WikiLink" title="Steinway &amp; Sons">Steinway &amp; Sons</a> and <b id="mwBnk"><a href="./Grotrian-Steinweg" id="mwBno" rel="mw:WikiLink" title="Grotrian-Steinweg">Grotrian-Steinweg</a></b> resulted in establishing the legal concept of "<a class="mw-redirect" href="./Initial_Interest_Confusion" id="mwBns" rel="mw:WikiLink" title="Initial Interest Confusion">initial interest confusion</a>"?