ES22339A2 - Una válvula de seguridad para toda clase de calderas de vapor y gasógenos, fundada en la aplicación de la electricidad al manómetro.
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Una válvula de seguridad para toda clase de calderas de vapor y gasógenos, fundada en la aplicación de la electricidad al manómetro.
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ES22339A1898-03-171898-03-17Una válvula de seguridad para toda clase de calderas de vapor y gasógenos, fundada en la aplicación de la electricidad al manómetro.
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