Find number abc
If 9c2cb - 6b26b = 32a1a find number abc. Multiple solutions may exist.Correct answers: 39
The first user who solved this task is Djordje Timotijevic.
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Polaroid Land camera demonstratedIn 1947, Edwin H. Land gave the first demonstration his invention of instant photography at a meeting of the Optical Society of America. On 28 Nov 1948, his Polaroid Land Camera first went on sale, at a Boston department store. The 40 series, model 95 roll film camera went on sale for $ 89.75. This first model was sold through 1953, and was the first commercially successful self- developing camera system. A sepia-coloured photograph took about one minute to produce. His first commercial success came in 1939 with his invention of Polaroid filters for lenses in products such as ski goggles, sunglasses and slip-on sunglasses for optical glasses. |