Notice to any savings bank doing business in this state of an adverse claim to an account on its books in the name of any savings account holder shall not cause the savings bank to recognize such adverse claimant, unless: (a) such adverse claimant either procures a restraining order, injunction or other appropriate process against the savings bank from a court of competent jurisdiction wherein the savings account holder, in whose name the account appears, is made a party and served with summons; or (b) such adverse claimant executes to the savings bank, in form and with sureties acceptable to it, a bond indemnifying it from any and all liability, loss, damage, costs and expenses for and on the account of the payment of such adverse claim.