BE607437A -
Device for the support and method for the breakthrough or advancement in a gallery and the temporary support of galleries usable in particular in mines
- Google Patents
Device for the support and method for the breakthrough or advancement in a gallery and the temporary support of galleries usable in particular in mines
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Application filed by Schwarz Kg HermannfiledCriticalSchwarz Kg Hermann
Publication of BE607437ApublicationCriticalpatent/BE607437A/en
BE607437A1960-08-291961-08-23
Device for the support and method for the breakthrough or advancement in a gallery and the temporary support of galleries usable in particular in mines
BE607437A
(en)
Device for the support and method for the breakthrough or advancement in a gallery and the temporary support of galleries usable in particular in mines
Device for the support and method for the breakthrough or advancement in a gallery and the temporary support of galleries usable in particular in mines