RU1774995C
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Method of protecting chipped-away structures
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SU1722544A1
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Method of cleaning effluent gases from mercury
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SU1751318A1
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Device for setting sensors in hole
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RU1776696C
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Method for phase analysis of mercury in powdered materials
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SU1742470A1
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Drilling machine for underground workings
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SU1728146A1
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Avanturine glass
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SU1705376A1
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Hydraulic metallurgical apparatus
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SU1650609A1
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Method for purifying effluents from suspended solids
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SU1691356A1
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Non-fritted glaze
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SU1671350A1
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Method of ball mill process control
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SU1702268A1
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Calibration method roentgenoradiometric analysis
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SU1708896A1
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Method of recovery of copper-bearing waste by electrolysis
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SU1688927A1
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Method of control of ore processing process
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SU1682340A1
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Method for obtaining aggloporite
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RU1777649C
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Optical density meter
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SU1651850A1
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Dust cleaning arrangement
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SU1596111A1
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Method of preparing block bottom
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SU1673936A1
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Method and apparatus for x-ray radiometric or gamma-gamma ore testing
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SU1634653A1
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Ceramic composition
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SU1604903A1
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Drainage system of tais starage dike
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