4. The expressions and abbreviations specified as similar to the expressions and abbreviations set out in inverted commas in paragraph 3 are any in which—U.K.
(a)one or more permitted characters has been omitted;
(b)one or more permitted characters has been added; or
(c)each of one or more permitted characters has been substituted by one or more other permitted characters,
in such a way as to be likely to mislead the public as to the legal form of a company or business if included in the registered name of the company or in a business name.