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Application filed by Charles Donov RowleyfiledCriticalCharles Donov Rowley
Priority to GR310103201ApriorityCriticalpatent/GR3201B/en
Publication of GR3201BpublicationCriticalpatent/GR3201B/en
GR310103201A1931-05-081931-05-08
PERFECTIONS IN OR IN RELATION TO THE TREATMENT OF SUBSTANCES WITH THE PURPOSE OF CLEANING, MAINTENANCE OR STERILIZING THEM.
GR3201B
(en)