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RuOptical instruments
Optical instruments
The case of the privileges of the mechanics Augustus at the camera invented cameras-obscura
Department of State Saving Department of the State Council.The case of the privilege of the mechanics of August the sown on the cameras-obscura invented.
1831.
Federal State Institution "Russian State Historical Archive" (RGIA)
August Schedel, a mechanic and inventor of photographic equipment. In the early 1850s, he launched the production of stereoscopes in St. Petersburg.