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GB8402090D0
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Nuclear weapon system
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|
GB2046823A
|
|
Methods of and apparatus for supporting the roof of a mine working
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AU5566580A
|
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Mine roofing support
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GB2026735A
|
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Time controlled recording of radio/tv programmes
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ES467984A1
|
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Method and apparatus for fabricating protective skin for coating long mining wall
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|
FR2417668A1
|
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Fastening strip for shielding at mine face - has hooks at ends of transverse wires and bent at acute angle w.r.t. longitudinal wires (OE 15.1.79)
|
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GB1580424A
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Method and apparatus for supporting the roof of an underground mine working
|
|
US4099785A
|
|
Method and apparatus for supporting the roof of an underground mine working
|
|
GB1536400A
|
|
Roof supports
|
|
GB1492586A
|
|
Roof support systems for underground mine workings
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|
GB1438796A
|
|
Advancing mine support systems
|
|
AU4347872A
|
|
Anew or improved mine roof support with means for lifting the base elements
|
|
GB1327524A
|
|
Guiding devices in mine roof supporting systems
|
|
GB1241150A
|
|
Improvements relating to superstructure in self-advancing roof supports
|
|
US3626700A
|
|
Superstructure in self-advancing roof supports
|
|
YU31249B
|
|
Pokretni agregat za podgradnju u jamskim pogonima
|
|
ES372974A1
|
|
Added mobile of operation directed by rods for underground mines. (Machine-translation by Google Translate, not legally binding)
|
|
GB1285773A
|
|
Improvements relating to self-advancing roof supports for mine workings
|
|
GB1313846A
|
|
Mechanical extension devices for hydraulic or other props
|
|
GB1287096A
|
|
Improvements relating to advancing roof supports for mine workings
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