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BG95987A
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Specific immune stimulator for animals and method for its preparation
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BG41437A1
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Time- distributor with mechanical engine
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BG39897A1
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Method for purification of solutions with high alcohol content
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BG40289A1
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Key- board mechanism
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BG38475A1
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Device for removing insulation from ends of conductors and mounting of joints
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BG37924A1
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Method for demethanolizing of high- alcohol solutions
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BG38654A1
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Filter with filler made of heavy filter materials
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BG36295A1
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Protective valve
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BG34164A1
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Printing card
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BG33599A1
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Method for improving the humidity retaining of tobacco
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BG34590A1
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Positioning mechanism for a reading and recording head
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BG32202A1
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Twoster filter with hydraulic automatisation
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BG34779A1
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Filter for light filter materials
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BG31316A1
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Draining sjstem for water washing of filters
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BG32546A1
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Two- positional mechanism
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BG36244A1
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Multi- layer filter cell with a different filtering and washing intensity for each layer
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BG29895A1
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Method and apparatus for lamel thickening and dewatering
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BG29743A1
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Apparatus for hydroautomatic getting out of sediments of sedimentation apparatus
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BG28645A1
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Regulator of filter velocity for selfoperating gravitational quicklyoperating filters
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