ES153247A1 - Un dispositivo para impedir, en las máquinas de vapor de corriente uniforme de uno o varios cilindros, que se engrasa el agua de alimentación
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Un dispositivo para impedir, en las máquinas de vapor de corriente uniforme de uno o varios cilindros, que se engrasa el agua de alimentación
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ES153247A1941-06-181941-06-18Un dispositivo para impedir, en las máquinas de vapor de corriente uniforme de uno o varios cilindros, que se engrasa el agua de alimentación
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