Find number abc
If 9290a - 7ba9b = 2bcb4 find number abc. Multiple solutions may exist.Correct answers: 46
The first user who solved this task is Djordje Timotijevic.
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Edward BauschDied 30 Jul 1944 at age 89 (born 26 Sep 1854).American inventor who developed microscopes and optical instruments. In business, he became chairman Bausch & Lomb Optical Co. His father, John J. Bausch (1830-1926), was born in Germany, emigrated to America in 1849, and started a spectacle making business (the Vulcanite Optical Instrument Co.) with German immigrant Henry Lomb (1828-1908). By 1866, their company was making a simple microscope. The company name was changed to Bausch & Lomb Optical Co. in 1874, the year they produced their first compound microscope. Edward, with brothers William, and Henry all helped in the design and production of a full product line of microscopes. Edward held a number of patents related to the design of microscopes. |