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1.
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Bale : Fondation Aippi, 1997.
French | F 170 AIPPI.A(F) |
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2.
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Basel : Aippi Stiftung, 1997.
German | F 170 AIPPI.I |
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3.
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[Paris, France] : [UNESCO], 1943.
French | 6A OMPI |
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4.
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Geneva [Switzerland] : World Intellectual Property Organization, 1998.
English | E 5B344 WIPO.B |
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5.
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Zurich : Schulthess Polygraphischer Verlag, Septembert 2007.
Danish | CH 28 2007 no 9 |
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6.
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Lausanne : Payot, 1974.
Portuguese | B 344 CON |
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7.
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Zurich : Societe Suisse Des Ingenieurs Et Des Arc, 1991.
French | A 9(124) SIA |
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8.
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Geneva : World Intellectual Property Organization, 1995.
English | E 5 WIPO.CO |
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9.
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[Paris, France] : [UNESCO], 1922.
French | 6A OMPI |
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10.
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[Paris, France] : [UNESCO], 1931.
French | 6A OMPI |
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