BE580684A
(en )
1960-01-14
Support frame for gallery or mine shaft.
FR1178174A
(en )
1959-05-05
hydraulic mine prop
BE584393A
(en )
1960-03-01
Installation for sieving materials.
BE586014A
(en )
1960-04-19
Support frame for galaries.
FR1221469A
(en )
1960-06-02
Articulated support frame for underground excavations
BE577291A
(en )
1959-07-31
Articulated support frame for underground excavations.
FR1340014A
(en )
1963-10-11
Mobile hydraulic support for mining operations
FR1242686A
(en )
1960-09-30
Support frame for galleries
FR1167165A
(en )
1958-11-21
Mining stand
FR1264673A
(en )
1961-06-23
Mobile support frame, for the bottom of mines
FR1173603A
(en )
1959-02-27
Support for underground excavation
BE586003A
(en )
1960-06-24
Hydraulic support frame for mining operations.
FR1230085A
(en )
1960-09-13
Support extension for mining
FR1243337A
(en )
1960-10-07
Hydraulic support frame for mining operations
FR1179380A
(en )
1959-05-22
Mobile support for mining operations
BE578532A
(en )
1959-08-31
Flexible support for underground excavations.
BE586799A
(en )
1960-07-22
Tunnel support for mining operations.
FR1248149A
(en )
1960-12-09
Articulated frame for supporting underground excavations, in particular for supporting galleries
FR1223804A
(en )
1960-06-20
Flexible support for underground excavations
BE583870A
(en )
1960-02-15
Support frame for the support of underground spaces.
FR1199170A
(en )
1959-12-11
Mobile support device for mining operations
FR1207382A
(en )
1960-02-16
Support framework for mines
BE573636A
(en )
1959-04-01
Frame construction for screen.
FR1196318A
(en )
1959-11-23
hydraulic prop for mine
FR1294095A
(en )
1962-05-18
Hydraulic support hitch for underground support