|
SU1288080A1
|
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Mixer
|
|
SU1176073A1
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Light-ray device for marking blast-holes in working-face
|
|
SU1244313A1
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Method of driving split trenches
|
|
SU1044796A2
|
|
Pulse-type pneumatic device
|
|
SU989067A1
|
|
Method of determining voids in rock body around workings
|
|
SU977839A2
|
|
Pneumatic pulse apparatus
|
|
SU881329A1
|
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Mine shaft muck-loading device
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|
SU866243A1
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|
Pneumatic pulsed device
|
|
SU883520A1
|
|
Mobile transfer conveyer
|
|
SU876442A1
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Method of manufacturing ferro-concrete articles
|
|
SU863873A1
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|
Device for feeding filling-in material into beyond-support space
|
|
SU840415A1
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|
Pneumatic engine
|
|
SU827799A1
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Safety roof support for horizontal mine workings
|
|
SU861634A1
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Reinforced concrete bolt roofing
|
|
SU947441A1
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Mining machine loading device
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|
SU796448A1
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Method of placing a tubular anchor
|
|
SU827796A1
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|
Method of cementation of fissured and porous rock
|
|
SU785524A1
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|
Device for feeding filling material
|
|
SU767351A1
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|
Shaft drilling rig
|
|
SU866198A1
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Rock-loading arrangement in mine shaft
|
