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ES239757A1
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Improvements in engines to liquid fuels (Machine-translation by Google Translate, not legally binding)
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ES212164A1
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Improvements in the manufacture of transmission chain (Machine-translation by Google Translate, not legally binding)
|
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ES212165A1
|
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A new zipper closure system (Machine-translation by Google Translate, not legally binding)
|
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ES192025A1
|
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Improvements in the construction of transmission chains
|
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ES189617A1
|
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Improvements in the cutting troquels
|
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ES161677A1
|
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Improvements in the manufacture of seals for motors and similar
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ES130574A1
|
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A new calculator designed mainly for pedagogical purposes.
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ES128564A1
|
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A new thermo-electric irrigator.
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ES111421A1
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Combustion chamber for turbine.
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US1390719A
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Thermo-electrical apparatus for boiling and heating purposes
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