STM PDF

Original standard ISO R 219-1961 in PDF full version. Additional info + preview on request

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Original standard ISO R 220-1961 in PDF full version. Additional info + preview on request

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Original standard ISO R 24-1956 in PDF full version. Additional info + preview on request

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Original standard ISO R 250-1962 in PDF full version. Additional info + preview on request

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Original standard ISO R 256-1962 in PDF full version. Additional info + preview on request

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Original standard ISO R 258-1962 in PDF full version. Additional info + preview on request

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