ES41688Y - Nuevo enrejillado de aireación horizontal diferencial, en combinación de tres fases huecas, una al exterior y dos al interior
- Google Patents
Nuevo enrejillado de aireación horizontal diferencial, en combinación de tres fases huecas, una al exterior y dos al interior
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ANGOSO ROJAS ANGEL
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ANGOSO ROJAS ANGEL
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Publication of ES41688YpublicationCriticalpatent/ES41688Y/es
ES0041688U1954-03-041954-03-04Nuevo enrejillado de aireación horizontal diferencial, en combinación de tres fases huecas, una al exterior y dos al interior
ExpiredES41688Y
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