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ES126946A1
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A process for manufacturing articles of cast iron intended to be hardened by nitrate.
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ES116461A1
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Container specially designed for nitriding.
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US1941128A
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Container, more particularly for nitriding purposes
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ES112439A1
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Procedure for the manufacture of objects of cast iron or steel unassailable by corrosive agents.
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ES111262A1
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Steel stamp
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ES111049A1
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Objects made of steel or cast iron, unassailable by corrosive agents and procedure for the manufacture of said objects.
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ES106949A1
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Procedure to protect various parts of an object that has to be hardened or hardened by nitration so that they do not harden by it.
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ES106760A1
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Procedure to harden the cast iron in its outer layers.
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DE491535C
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Staehlernes die
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DE517077C
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Method for embroidering workpieces on parts of their surface
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DE473681C
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Method of treating individual parts of an article to be hardened by nitriding against di
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