“Person”, as used in this part, includes persons, firms, corporations, societies and associations, and the acts of agents and employees under this part shall be construed to be the acts of their principals and employers as well as of the agents and employees. “Closed package” means a box or other container, the contents of which cannot be sufficiently seen for the purposes of inspection without opening the container. Apples packed in closed or open packages shall be deemed to be misbranded if their measure, quality or grade does not conform in every particular to the brand or mark upon or affixed to the package or if the faced or shown surface gives a false representation of the contents of the package.