Arrangement for peeling the corroded parts of walls in defined layers particularly of tunnels
HUT56608A
Method and apparatus for early recognizing spontaneous-combustion mine fire and/or determining its place in the interior of detritus spaces of large extent
HU197053B
Method for protecting underground caves, spaces, drifts, headings or similars against water
HUT43679A
Supporting device for propping mine roadways or similars
HU196087B
Method for delivering in air flow and guniting wet concrete mixture
GB8602026D0
Stiffening support frames for erecting reinforced, layered walls
GB8600155D0
Securing underground spaces or cavities, e.g. new mine drifts
HUT52599A
Method and apparatus for renewing the walling of underground holes particularly headings, mine drifts, tunnels and similars
HU195561B
Method particularly for stripping the correded walling of tunnels by determined layer
HUT44839A
Method for monolithic reinforcing the load-carrying structures of constructions
HUT42583A
Method for simultaneous, continuous producing combined plastic product e.g. plastic net and metal net
HU198313B
Method for post-fastening floors or resetting their load capacity
HUH3050A
Framework for strap transport traces and method for producing same
HU190272B
Level-measuring set
HU189833B
Method for producing concrete particularly heaped or transported ones
HU185819B
Method for supporting undergroud areas particularly new mine roadways
HUT34587A
Mammoth pump particularly for lifting granular solid material
HU188215B
Reinforcing bear frame system for forming reinforced laminated wallings
HU181048B
Method for supporting underground hollows,surface banks or similars as well as safety rock screw suitable for carrying out the method
HU177189B
Pressure-chamber mammoth pump and pressure tube for same
