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Individual
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Individual
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Publication of ES456700A1publicationCriticalpatent/ES456700A1/es
Procedimiento para la fabricación de tornillos, del tipo que tienen una cabeza y un fuste roscado, caracterizado porque comprende las fases de mecanizar contínuamente un hilo de rosca sobre una varilla o barra alargada, cortar un fuste de tornillo roscado de la barra, mecanizar por separado una cabeza de tornillo, y sujetar la cabeza de tornillo y el fuste por soldadura.
ES456700A1976-03-101977-03-10Procedimiento para la fabricacion de tornillos.
ExpiredES456700A1
(es)