The case of issuing a 5-year-old privilege of a merchant rod on the lamp of a special device invented by him, called "economic"

Title	The case of issuing a 5-year-old privilege of a merchant rod on the lamp of a special device invented by him, called "economic"
Series	1850-1856
Fonds	Department of State Economy of the State Council
Display format	Full description RUSMARC
Collections	Russian inventions: Pages of history → Inventions in the XVIII - early XX century → Selected inventions → Lighting. Artificial light sources