Section 5. Securities in Class "B" shall comprise securities:
(1) Sold by the owner for the owner's account exclusively when not made in the course of continued and repeated transactions of a similar nature;
(2) Increased capital stock of a corporation sold or distributed by it among its stockholders without the payment of any commission or expense to solicitors, agents or brokers in connection with the distribution thereof;
(3) Sold by or to any bank, trust company, or insurance company or association organized under any law of this State or of the United States, or doing business in this State under the supervision of the Department of Trade and Commerce; or of the auditor of Public Accounts; or by or to any building and loan association organized and doing business under the laws of this State, or any public sinking fund trustees; or to any corporation or dealer or broker in securities;
(4) Sold or offered for sale at any judicial, executor's or administrator's sale, or at any sale by a receiver or trustee in insolvency or bankruptcy, or at a public sale or auction held at an advertised time and place;
Securities in Class "B," when disposed of by the persons and in the manner provided by this section, shall not be subject to the provisions of this Act.
Section 6. Securities in Class "C" shall comprise the following:
Those issued by a person, corporation, firm, trust, partnership or association owning a property, business or industry, which has been in continuous operation not less than two years and which has shown net profits, exclusive of all prior charges, as follows:
(1) In the case of interest-bearing securities not less than one and one-half times the annual interest charge upon all outstanding interest-bearing obligations;
(2) In the case of preferred stock not less than one and one-half times the annual dividend on such preferred stock;