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Year of Publication 25.03.1980
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METHOD OF PRODUCING BAG PAPER
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Year of Publication 23.03.1989
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Year of Publication 15.05.1978
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Year of Publication 23.07.1986
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METHOD OF PREPARING FIBROUS MASS FOR MAKING CAPACITOR PAPER
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Year of Publication 07.06.1986
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Year of Publication 07.06.1986
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Year of Publication 30.05.1985
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Year of Publication 30.06.1982
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Year of Publication 23.11.1981
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Year of Publication 15.09.1981
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Year of Publication 15.09.1981
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