Original standard IEC 60235-2A-1974 in PDF full version. Additional info + preview on request
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Original standard IEC 60235-2B-1975 in PDF full version. Additional info + preview on request
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Original standard IEC 60235-2C-1976 in PDF full version. Additional info + preview on request
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Original standard IEC 60235-2D-1976 in PDF full version. Additional info + preview on request
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Original standard IEC 60235-2E-1976 in PDF full version. Additional info + preview on request
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Original standard IEC 60235-3-1972 in PDF full version. Additional info + preview on request
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