FR1207938A
(en )
1960-02-19
Metal support for mine gallery
NL150908B
(en )
1976-09-15
MONOCHROMATOR SYSTEM.
FR1226787A
(en )
1960-08-16
Improvements made to hydraulic props, in particular for galleries or mine corridors
FR1236439A
(en )
1960-07-15
Bil-spindle support system, in particular for mine tunnel ceilings
FR1242398A
(en )
1960-09-30
Gutter-shaped profile, with flanges, in particular for the support of mine galleries
BE582782A
(en )
1960-03-18
Gutter-shaped profile, with flanges, in particular for the support of mine galleries
FR1207659A
(en )
1960-02-18
Support bar, in particular for the roof of timbering of mining galleries
FR1232758A
(en )
1960-10-12
Improvements made to the support frames or arches for galleries and mine corridors
BE597137A
(en )
1961-03-15
Metal post, in particular for the support of mine freezings.
FR1215841A
(en )
1960-04-20
metal wedge prop
FR1273658A
(en )
1961-10-13
Metal post, in particular for supporting mine galleries
BE583465A
(en )
1960-02-01
Process for executing segments for the support of mine galleries.
FR1284655A
(en )
1962-02-16
Lining panels for mine galleries
FR1287138A
(en )
1962-03-09
Movable support for mine galleries
FR1261055A
(en )
1961-05-12
Process for the concrete lining in intervals of shafts, in particular mine shafts
MC129A1
(en )
1959-11-10
Metal lining for underground galleries.
FR1174140A
(en )
1959-03-06
Improvements made to support frames, in steel, for galleries or mine corridors
FR68663E
(en )
1958-06-09
Keyed joint for t and h profiles, in particular for mine arch support
FR1212988A
(en )
1960-03-28
New mine prop
FR1201530A
(en )
1959-12-30
Oscillating corridor loader, suitable for use in mining
FR1417996A
(en )
1965-11-19
Framework for supporting mine galleries
BE581708A
(en )
1960-02-15
Improvements made to support frames or arches for galleries and mine corridors.
BE599512A
(en )
1961-05-16
Advanced support system for mine ceilings
FR1318230A
(en )
1963-02-15
Hat, in particular for mechanized support of mine galleries
BE608407A
(en )
1962-01-15
Base for mine prop.