The case of the Oprivilegia Coll.owls.Davydov on the inventions made by him in the beet and sanitary production.N. 21/V;By 6/VII...

The case of the Oprivilegia Coll.owls.Davydov on the inventions made by him in the beet and sanitary production.N. 21/V;By 6/VII;1834 / Department of State Economy.- 1834. -12 l .. - (Department of state savings of the State Council. Inventory No. 2. 1834).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.2 1834 d.56