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RuПаровые котлы. Котлостроение
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The case of the Melzer's privilege on the steam boiler invented
Department of State Saving Department of the State Council.The case of the privilege of the Melzer on the steam boiler invented them.
The case of issuing a 6-year-old privilege mechanics of Mülkau on the way of heating water in steamels and steamers
Department of State Saving Department of the State Council.The case of issuing a 6-year-old privilege mechanics of Mulkau on the way it was invented by the method of water heating in steam locomotives and steamers.