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US2137144A
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Process for the production of metal carbides
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IE14207L
|
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Protective coating for iron and steel
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US2116271A
|
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Method of impregnating a metallic mass or metal article with other metal
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ES141277A1
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An improved process of impregnation of a metal mass or metal object, with another metal or substance that is not metal.
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ES141276A1
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A process for the preparation of alloys by casting, intended for the manufacture of objects resistant to corrosion and the action of heat.
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ES141278A1
|
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An improved process for the manufacture of alloys.
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GB468757A
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Improvements in processes for case-hardening steel
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GB471792A
|
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Improvements in processes for the production of metal carbides
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CA369229A
|
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Iron and steel protecting process
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