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Priority to FR7409960ApriorityCriticalpatent/FR2270200A1/fr
Publication of FR2270200A1publicationCriticalpatent/FR2270200A1/fr
Application grantedgrantedCritical
Publication of FR2270200B1publicationCriticalpatent/FR2270200B1/fr
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
G05D9/02—Level control, e.g. controlling quantity of material stored in vessel without auxiliary power
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FR7409960A1974-03-221974-03-22Constant-level liq reservoir make-up system - has pipe immersed in liq and extending from sealed vessel
GrantedFR2270200A1
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