The privilege case of Medicine Vilkeku for the use of an improved method of extracting sugar from beetroot.N.20/VIII;V. u.10/x.1...

The privilege case of Medicine Vilkeku for the use of an improved method of extracting sugar from beetroot.N.20/VIII;V. u.10/x.1838 / Department of State Economy.- 1838. -10 l .. - (Department of state savings of the State Council. Inventory No. 2. 1838).-Film..I. Department of State Economy ..Electronic copy source: RGIAPlace of storage of the original: RGIA f.1152 op.2 1838 d.187