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Atlas Polar S A
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Atlas Polar S A
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Publication of ES200721A1publicationCriticalpatent/ES200721A1/es
Perfeccionamientos en la fabricación de las brooas de martillos perforadores caracterizados porque consisten en delimitar su parte destinada. a mango mediante una serie de junturas de caucho que se embuten sobre la broca con interposición de arandelas metálicas y que son apretadas fuertemente mediante anillos metálicos.
ES0200721A1950-12-221951-11-30PERFECCIONAMIENTOS EN LA FABRICACIoN DE LAS BROCAS DE MARTILLOS PERFORADORES
ExpiredES200721A1
(es)