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BG42476A1
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Disk brake with device for automatic maintenance of slack
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BG40902A1
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Means for simultaneous dying and bleaching of wool textile materials
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BG41053A1
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Heat- resistant enamel paint
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BG36465A1
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Method for fixing antigens on inner wals of plastic test tubes
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BG35989A1
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Method for reducing the degree of drubbing of wool materials
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BG35737A1
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Device for converting the signal level between interface rs 232 and a telegraph line
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BG35280A1
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Method for seismic profiling
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BG34753A1
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Electrostatic acoustic converter
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BG31723A1
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Means for imporoving of woolen articles
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BG31086A1
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Means for fighting the chalkathose and braulose by the bees
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BG30640A1
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Induction method for lactation by cows and heifers
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BG29962A1
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Means for cloath softening from regenerated cellulose
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BG29666A1
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Method for printing of wool wand
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BG29833A1
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Compensator of horizontal angle mistake of record- player body
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BG29834A1
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Compensator of horizontal angle mistake of record- player body
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BG29010A1
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Method of early diagnostic of cow pregnancy
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BG28014A1
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Anticurrent,electrostatic and electroacovstic transducter with external source of polarizing tension
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