The case of giving the privilege of the optics of Kulman to the devices invented by him to correct oblique and weak eyes.N.26/II...

The case of giving the privilege of the optics of Kulman to the devices invented by him to correct oblique and weak eyes.N.26/III;V.U.10/VI.1829./ Department of State savings.- 1829. -11 l .. - (Department of state savings of the State Council. Inventory No. 1. 1829).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.1 1829 d.41