The case of the issuance of a 10-year privilege to a foreigner Pfeifer, in Cologne, on a way of extracting pure crystalline suga...

The case of the issuance of a 10-year privilege to a foreigner Pfeifer, in Cologne, on a way of extracting pure crystalline sugar from different varieties of cheesecake without the use of animal coal N. 29/VI;V.U.9/VI.1854 / Department of State Economy.- 1854. -18 l .. - (Department of state savings of the State Council. Inventory No. 4. 1854).-Film..I. Department of State Economy ..Electronic copy source: RGIAOriginal storage location: RGIA f.1152 op.4 1854 d.96