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F LEGRAND ET CIE SOC
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F LEGRAND ET CIE SOC
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Publication of FR711656ApublicationCriticalpatent/FR711656A/en
H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
H01H85/02—Details
H01H85/24—Means for preventing insertion of incorrect fuse