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Through-flow device for solar heating of water
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Process for preparing soluble collagens and high-grade gelatins
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Pharmaceutical preparation based on hyaluronic acid derivative
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Method of hyaluronic acid's apyrogenic derivative preparation
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Method of pressure hydrolysis by means of sodium hydroxide
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Production method of leathers with encrease heat resistance
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Method of hide and fur chrome tanning
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Hides and furs chrome tanning method
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Method of leathers and theier sections detanning
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Powdered composition for tanning of hides.
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