Series of trade marks
28.  When a person claiming to be the proprietor of several trade marks for the same goods or description of goods which, while resembling each other in the material particulars thereof, yet differ in respect of —
(a)statements of the goods for which they are respectively used or proposed to be used;
(b)statements of number, price, quality or names of places;
(c)other matter of a non-distinctive character which does not substantially affect the identity of the trade mark; or
(d)colour,
seeks to register those trade marks, they may be registered as a series in one registration. All trade marks so registered shall be deemed to be and shall be registered as associated trade marks.