The provisions of this chapter shall not apply to an owner of any product of his own raising or to the manufacturer of any article manufactured by him, who by himself or his agent, peddles or vends any such article or product; nor shall the same apply to any person who by State or federal law or constitutional provision, has been exempted from obtaining such license; nor to any sale under order of court or at a bona fide auction; nor to any sale at wholesale to a retail dealer.