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Aluminium sheet with rough surface
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Patent number 6,524,768
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Issue date Feb 25, 2003
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Alcan International Limited
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Peter Karl Ferdinand Limbach
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Treating aluminum workpieces
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Patent number 6,267,870
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Issue date Jul 31, 2001
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Alcan International Limited
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Martin Philip Amor
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Aluminium sheet with rough surface
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Patent number 5,998,044
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Issue date Dec 7, 1999
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Alcan International Limited
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Peter Karl Ferdinand Limbach
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Electrochemical graining method
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Patent number 5,755,949
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Issue date May 26, 1998
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AGFA-Gevaert A.G.
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Martin Philip Amor
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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