AT195372B -
Reinforced, rigid ring support for pit spaces, especially for short, particularly pressure-laden, disturbed sections of the route and for shafts
- Google Patents
Reinforced, rigid ring support for pit spaces, especially for short, particularly pressure-laden, disturbed sections of the route and for shafts
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Publication number
AT195372B
AT195372BAT195372DAAT195372BAT 195372 BAT195372 BAT 195372BAT 195372D AAT195372D AAT 195372DAAT 195372 BAT195372 BAT 195372B
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Application filed by Bochumer Ges Fuer GrubenausbaufiledCriticalBochumer Ges Fuer Grubenausbau
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Publication of AT195372BpublicationCriticalpatent/AT195372B/en
AT195372D1956-07-301956-07-30
Reinforced, rigid ring support for pit spaces, especially for short, particularly pressure-laden, disturbed sections of the route and for shafts
AT195372B
(en)