BE595330A
(en )
1961-01-16
Bil-spindle support device, in particular for mine tunnel ceilings.
BE615419A
(en )
1962-07-16
Removable support device for mine props
FR1319372A
(en )
1963-03-01
Walking pile for mine support
FR1198999A
(en )
1959-12-10
Support system for mine galleries
FR1291038A
(en )
1962-04-20
Articulated extension for mine support system
BE612935A
(en )
1962-05-16
Articulated extension for mine support system
FR1302724A
(en )
1962-08-31
Roof support for mines
FR1215579A
(en )
1960-04-19
Support system for mines
FR1212989A
(en )
1960-03-28
Safety device for mine prop
FR1286461A
(en )
1962-03-02
Articulated junction for mine support
FR1287138A
(en )
1962-03-09
Movable support for mine galleries
BE599512A
(en )
1961-05-16
Advanced support system for mine ceilings
FR1316824A
(en )
1963-02-01
Framework for mining
FR1359021A
(en )
1964-04-17
Collapsible support for mine support
FR1230085A
(en )
1960-09-13
Support extension for mining
FR1295963A
(en )
1962-06-15
Mine safety facility
FR1454740A
(en )
1966-02-11
Support system for mines
FR1341420A
(en )
1963-10-25
Roof support for mine
FR1301099A
(en )
1962-08-10
Bendable support for mine tunnel support system
FR1316125A
(en )
1963-01-25
Flexible support for mine galleries
FR1337133A
(en )
1963-09-06
Mine roof support
FR1310723A
(en )
1962-11-30
Mine support pile
FR1258759A
(en )
1961-04-14
Progression device for mining
FR1347992A
(en )
1964-01-04
Walking support system for mine roofs
FR1294095A
(en )
1962-05-18
Hydraulic support hitch for underground support