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Salisbury Silas Covel
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Salisbury Silas Covel
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Priority to ES1859ApriorityCriticalpatent/ES1859A1/en
Publication of ES1859A1publicationCriticalpatent/ES1859A1/en
A device that receives the action of the regulators to transmit it to the steam taps, transmitting only the movements useful for the effect to be obtained.