GB1552538A
(en )
1979-09-12
Method for checking gas analysis devices
GB2000073B
(en )
1982-03-31
Means and method for drilling rock
PL206480A1
(pl )
1979-01-29
Sposob i urzadzenie do wytwarzania stali
GB1556675A
(en )
1979-11-28
Method and apparatus for supporting the roof of an underground mine working
JPS5426790A
(en )
1979-02-28
Method and apparatus for analyzing gas
IT1101268B
(it )
1985-09-28
Metodo e apparato per produrre nerofumo
GB1542541A
(en )
1979-03-21
Method and apparatus for sinking boreholes
MY8200031A
(en )
1982-12-31
Method and apparatus for excavating horizontal tunnels
JPS54114292A
(en )
1979-09-06
Method and device for analyzing gas
IT1076084B
(it )
1985-04-22
Metodo ed apparato per involtare pacchi
JPS5315196A
(en )
1978-02-10
Method and apparatus for gas chromatography
GB2009405A
(en )
1979-06-13
Mine roof and wall inspection apparatus and method
PL208484A1
(pl )
1979-03-12
Sposob odkwaszania mieszanin gazowych
IT1095515B
(it )
1985-08-10
Apparecchio per far avanzare ed ispezionare contenitori
PL102371B1
(pl )
1979-03-31
Method and apparatus for forecasting gas and rock outburst hazards
NO152158C
(no )
1985-08-14
Fremgangsmaate og anordning for termokjemisk flammehoevling
NO780296L
(no )
1978-07-31
Fremgangsmaate og apparat for seismiske undersoekelser
JPS533886A
(en )
1978-01-13
Method and apparatus for gas spectrochemical analysis
NO774306L
(no )
1978-10-23
Fremgangsmaate til og apparat for maaling av jordformasjoners poroesitet
JPS5430628A
(en )
1979-03-07
Method and device for constructing tunnel
JPS5641129A
(en )
1981-04-17
Method and device for extinguishing shrink tunnel by gas
JPS54152307A
(en )
1979-11-30
Base rock test method
JPS5360352A
(en )
1978-05-30
Steel gas cutting method and device
JPS5420936A
(en )
1979-02-16
Method and apparatus for gas cutting
JPS53135393A
(en )
1978-11-25
Detecting method and apparatus for saturated hydrocarbon gas