280.12. For the purposes of each of the definitions in the first paragraph of section 280.5, a property held at a particular time by a corporation that would, if this Act were read without reference to this section, be considered to carry on an eligible business at that time, is deemed to be used or held by the corporation in the course of carrying on that eligible business if the property, or other property for which the property is substituted property, was acquired by the corporation, at any time in the 36-month period that ends at the particular time, because the corporation (a) issued a debt or a share of a class of its capital stock in order to acquire money for the purpose of acquiring property to be used in or held in the course of, or making expenditures for the purpose of, earning income from an eligible business carried on by it;
(b) disposed of property used or held by it in the course of carrying on an eligible business in order to acquire money for the purpose of acquiring property to be used in or held in the course of, or making expenditures for the purpose of, earning income from an eligible business carried on by it; or
(c) accumulated income derived from an eligible business carried on by it in order to acquire property to be used in or held in the course of, or to make expenditures for the purpose of, earning income from an eligible business carried on by it.