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Application filed by Politechnika Slaska Im WincentfiledCriticalPolitechnika Slaska Im Wincent
Priority to PL24863284ApriorityCriticalpatent/PL248632A1/en
Publication of PL248632A1publicationCriticalpatent/PL248632A1/en
PL24863284A1984-07-091984-07-09Apparatus for determining direction of magnetic field,in particular to check polarity of a quick-acting d. c. switch
PL248632A1
(en)