ES13509A1 - Mejoras en la fabricación de cruzamientos de vía o agujas para raíles de ferrocarril o tranvías por medio de los aparatos que se describen.
- Google Patents
Mejoras en la fabricación de cruzamientos de vía o agujas para raíles de ferrocarril o tranvías por medio de los aparatos que se describen.
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Individual
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Individual
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Priority to ES13509ApriorityCriticalpatent/ES13509A1/es
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ES13509A1892-06-281892-06-28Mejoras en la fabricación de cruzamientos de vía o agujas para raíles de ferrocarril o tranvías por medio de los aparatos que se describen.
ExpiredES13509A1
(es)