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Individual
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Priority to ES0255704ApriorityCriticalpatent/ES255704A1/en
Publication of ES255704A1publicationCriticalpatent/ES255704A1/en
Improvements in the boilers of small heating surface, characterized in that these, being built in steel sheet and being an internal hearth, are provided with a plurality of unidirectional pipes of smoke conduction surrounded entirely by water, which suffers , in addition, the direct heating by convection and radiation of the gases of the home itself. (Machine-translation by Google Translate, not legally binding)
ES0255704A1960-02-111960-02-11Improvements in the boilers of small heating surface (Machine-translation by Google Translate, not legally binding)
ExpiredES255704A1
(en)
Improvements in the boilers of great power with oil home or combined home of oil and gas (Machine-translation by Google Translate, not legally binding)