Now, many medicinal tablets are Packed in colorful plastic cells, covered with foil or paper. In improvised signal light devices are very convenient to use such cells as the cap-filter for signal lamps.
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What is the microplane "Wasp" created by Kronstadt craftsmen? At first glance, it seems there is nothing new in it. A strut-braced high-wing monoplane, a scheme that has become the most...
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