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BG40225A1
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Method for improving apple pectin purity
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BG40212A1
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Lining for tunnel furnace waggons
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BG39893A1
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Thermoinsulating refractory mass
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BG37124A1
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Method for preparing alumine- phosphatic bond
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BG37128A1
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Method for thermic isolating of vertical walls in industrial furnaces
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BG38228A1
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Method for thermic insulating of roofs and other parts of industrial furnaces
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BG36176A1
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Buffer gas for electro- discharge hecl exymeric laser
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BG33487A1
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Glass- ceramic composition for fireproof articles sticking
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BG31846A1
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Composition of zirconium firg resistant mass
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BG31874A1
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Composition of thermo resistant and glass resistant refractory mass
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BG31285A1
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Composition of couloring agent for ceramic glazes
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BG29659A1
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Method of obtaining of ensime pectinesterase substances
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