Arrows may be used at the end of the leading lines provided that their meaning is clear. They may indicate a number of points:
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/a_ix_7_5_2.htm
Date retrieved: 17 May 2021
Source: http://www.epo.org/law-practice/legal-texts/html/guidelines/e/a_ix_7_5_2.htm
Date retrieved: 17 May 2021