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RU1800057C
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Method for detection of seats of rock bursts
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RU1800025C
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Starting device of pneumatic hammers
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RU1806266C
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Downhole device for formation of directed fissures
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RU1796003C
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Method for trenchless pipeline laying
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RU1806265C
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Downhole device for formation of directed fissures
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RU1797650C
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Downhole pneumatic hammer
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RU1803585C
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Method of prevention of rock bumps
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RU1799954C
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Device for extraction of elongated rod-like members from ground
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RU1800026C
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Method for monitoring rock mass state
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RU1784584C
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Flotation plant
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RU1812308C
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Gear to cut lateral rudimentary slots in borehole
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RU1789645C
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Drill bit
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RU1812095C
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Pneumatic single-shock device
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RU1784562C
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Plunger feeder for loose materials
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RU1821530C
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Method of driving cast-in-place piles
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RU1802115C
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Device for breakage of rock by drilling and breaking-off
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RU1801624C
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Device for cleaning pipes driven vertically into ground
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|
RU1806264C
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Downhole multichannel pneumatic percussive mechanism
|
|
RU1819309C
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Method for construction of cast-in-place pile and reinforcing cage of cast-in-place pile
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RU1825986C
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Recorder of mechanical vibrations
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