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Application filed by Gutehoffnungshuette OberhausenfiledCriticalGutehoffnungshuette Oberhausen
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Publication of AT179535BpublicationCriticalpatent/AT179535B/de
AT179535D1952-05-271953-05-06Verspannungsvorrichtung für Abstandbolzen zwischen Ausbauelementen für den Grubenausbau, insbesondere den Streckenausbau
AT179535B
(de)