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Publication of BE624542ApublicationCriticalpatent/BE624542A/xx
H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa