(a) Make any loan, directly or indirectly, or furnish any fixtures of any kind, directly or indirectly, to any retail dealer in light wines and/or beer;
(b) Have any interest, direct or indirect, in the business of or in the furnishings or fixtures or in the premises used by any such retail dealer in connection with his or its business;
(c) Have any lien on any such property of any such retail dealer; or
(d) Sell light wines and/or beer to any such retail dealer on credit.