RU1778219C
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Method for screening of hydraulic mine-dump bed
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SU1738900A1
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Method of screen wash-up on accumulator skirting
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SU1728345A1
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Method for screen of water-permeable sides of hydraulic fill basin
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RU1790640C
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Earth dam
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RU1798629C
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Digital period meter for vibrating wire transducer
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RU1784925C
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Digital ohm-meter
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SU1778218A1
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Method for erection of hydraulic mine dump
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RU1791507C
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Device for placement of concrete mix
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SU1714030A1
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Earth dam
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SU1710654A1
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Device for making film diaphragm in waterproof earth structure
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RU1775695C
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String-type instrument transducer
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RU1791520C
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Spillway lower pond blanket
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SU1701791A1
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Method for shielding of water basin bed
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SU1693183A1
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Water outlet
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SU1747590A1
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Method for purifying effluents from storage reservoir of secondary raw materials
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SU1693178A1
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Method for building filled ash and slag disposal area
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SU1687726A1
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A method of erecting frozen-type ground dam
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SU1684421A1
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Flexible drain
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SU1684405A1
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Method for erecting fill-up dike of hydraulic dump
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SU1708709A1
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Bin device
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