ES147323A1 - Procedimiento mecánico automático, que consiste en utilizar un tornillo sin fin y calibrador sumergido en el lavado de las arenas para cristal.
- Google Patents
Procedimiento mecánico automático, que consiste en utilizar un tornillo sin fin y calibrador sumergido en el lavado de las arenas para cristal.
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Ferrando Mir Ernesto
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Ferrando Mir Ernesto
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Priority to ES147323ApriorityCriticalpatent/ES147323A1/es
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ES147323A1939-11-211939-11-21Procedimiento mecánico automático, que consiste en utilizar un tornillo sin fin y calibrador sumergido en el lavado de las arenas para cristal.
ExpiredES147323A1
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