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Method and apparatus for machining surfaces by a jet of electroconducting liquid
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RU1776285C
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Drill bit
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SU1765420A1
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Deposit dredge mining method
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SU1750734A2
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Device for controlling flotation in pneumatic column of flotation machine
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SU1750735A1
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Machine for froth separation of minerals
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SU1761312A1
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Device for cleaning metal surfaces
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RU1775141C
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Method of dust trapping in grained filters
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RU1791645C
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Torsional vibration damper
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Method and apparatus for sinking piles
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RU1775363C
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Method for processing sodium silicon fluoride
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SU1746301A1
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Method for determining soluble salts of aromatic sulfonates
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RU1772486C
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Mechanism for reproduction of equidistant curves
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SU1747388A1
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Device for flotation cleaning of sewage
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Hydroacoustic transducer
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SU1722599A2
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Pneumatic flotation machine
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RU1784913C
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Method of mercaptan concentration determining in water area
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SU1729597A2
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Foam separation machine
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SU1715433A2
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Froth separator
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SU1736946A1
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Method for treatment of surplus active silt
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SU1719191A2
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Device for strengthening surface of cylindrical parts
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