1.
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[Place of publication not identified] : [publisher not identified], 1989.
English | 85 US |
|
2.
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Köln, Germany : Carl Heymanns Verlag, 2008.
|
3.
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Courbevoie [France] : Institut National de la Propriété Industrielle, 1986.
French | 10A OMPI |
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4.
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Geneva [Switzerland] : International Bureau for the Protection of Industrial Property, 1986.
English | 10B OMPI |
|