All juvenile detention homes, farms, and industrial schools heretofore established under the provisions of Laws 1905, chapter 285, section 5, as amended by Laws 1907, chapter 172, and Laws 1911, chapter 353, or Laws 1913, chapter 83, Laws 1915, chapter 228, or Laws 1917, chapter 317, as amended, are hereby declared to be county home schools within the meaning of sections 260B.001 to 260B.421 and all the provisions of those sections relating to county home schools shall apply thereto.