Improvement in the extraction and processing of iron and steel

Improvements in the extraction and processing of iron and steel: No. 1687/85.Declared.10.12.1869.Issues on 12/31/1874 / Karl-Vielim Siemens.- [St. Petersburg]: Type.Exped.Polot.state.papers, 1875. -18 p., 1 liter.Il .. -The privilege issued from the Department of Trade and Manufactory in 1874. Foreigner Karl-Vielim Siemens, living in London, for improvement in the extraction and processing of iron and steel;December 31, 1874, for ten years, at the request of the technologist of Koup, dated February 10, 1869.Before the text: 85.Ex.: With a handle.litter..I. Siemens, Karl Vielim. 1.People (collection).Electronic copy source: PBOriginal storage location: VPTB FIPS