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ADOLPHE ROSSI
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ADOLPHE ROSSI
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Publication of FR405498ApublicationCriticalpatent/FR405498A/fr
E21C37/00—Other methods or devices for dislodging with or without loading
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FR405498D1909-07-191909-07-19Procédé et outillage permettant le tranchage de la pierre dans la masse ou dans des blocs déjà extraits
ExpiredFR405498A
(fr)