GB1121541A
(en )
1968-07-31
Improvements in or relating to the automatic remote control of mine roof supports
AU403753B2
(en )
1967-08-10
Improvements in or relating to the automatic remote control of mine roof supports
AU126866A
(en )
1967-08-10
Improvements in or relating to the automatic remote control of mine roof supports
CA736647A
(en )
1966-06-21
Roof construction
AU424126B2
(en )
1967-09-07
Improvements in or relating to mine roof supports
CA789234A
(en )
1968-07-09
Automatic remote control of mine roof supports
AU289060B2
(en )
1966-07-14
Improvements in or relating to mine roof supports
AU223166A
(en )
1967-09-07
Improvements in or relating to mine roof supports
AU416650B2
(en )
1971-08-27
Improvements in or relating to self-advancing mine roof supports
CA747777A
(en )
1966-12-06
Mine roof supports
AU406965B2
(en )
1967-07-06
Improvements in or relating to mine roof supports
AU407135B2
(en )
1967-05-25
Improvements in or relating to mine roof supports
AU411202B2
(en )
1967-06-22
Improvements in or relating to mine roof supports
AU4088564A
(en )
1965-08-19
Improvements in or relating to mine relating to mine roof supports
AU5394165A
(en )
1966-07-14
Improvements in or relating to mine roof supports
AU1518266A
(en )
1971-08-27
Improvements in or relating to self-advancing mine roof supports
AU281919B2
(en )
1965-09-30
Improvements in or relating to roof supports for mines andthe like
AU286644B2
(en )
1965-09-16
Improvements in or relating to mine roof and like supports
AU292591B2
(en )
1966-09-15
Improvements in or relating to mine roof and like supports
AU1978467A
(en )
1968-10-10
Improvements in or relating to roof guttering
AU437411B2
(en )
1968-09-19
Roof construction
AU6694565A
(en )
1967-05-25
Improvements in or relating to mine roof supports
AU6841365A
(en )
1967-07-06
Improvements in or relating to mine roof supports
AU6816865A
(en )
1967-06-22
Improvements in or relating to mine roof supports
AU442350B2
(en )
1969-10-23
Improvements in or relating to mine roof supports