12. The organization of such laboratories, their maintenance expenses, the execution of the agreements contemplated in section 11 and, generally, the costs incurred for the carrying out of this division, shall be paid out of a special fund composed of(1) the sums voted each year by the Legislature for such purposes;
(2) benevolent contributions made by industrials and other persons desirous of contributing to the success of the studies and researches made in such laboratories;
(3) royalties and other revenue accruing from the patents obtained as a result of research work carried out in such laboratories.