(b)a purchase of goods before the appointed day from a dealer registered under the Bombay Sales Tax Act, 1959 (Bom. LI of 1959), but not being the following classes of purchases;-(i)a purchase of any goods if the goods at the time of their purchase were the goods specified in Schedule A of the said Act;(ii)a purchase of any goods from any person whose sale of such goods had been wholly exempted from payment of tax under section 41 of the said Act;(iii)a purchase of any goods which was not liable to tax by virtue of the provisions of section 75 of the said Act;(iv)a purchase of any goods described in Part II of Schedule B, or Schedule D or Schedule E of the said Act by a dealer holding a Licence under section 23 of the said Act, on the date of such purchase.