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Cleaner for lithographic printing plates
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Patent number 4,886,553
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Issue date Dec 12, 1989
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Hoechst Celanese Corporation
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Thomas N. Gillich
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Electrochemically treated metal plates
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Patent number 4,448,647
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Issue date May 15, 1984
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American Hoechst Corporation
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Thomas N. Gillich
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Electrochemically treated metal plates
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Patent number 4,383,897
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Issue date May 17, 1983
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American Hoechst Corporation
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Thomas N. Gillich
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C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES APPARATUS THEREFOR
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Lithographic plate finisher
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Patent number 4,213,887
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Issue date Jul 22, 1980
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American Hoechst Corporation
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John E. Walls
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Lithographic plate finisher
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Patent number 4,162,920
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Issue date Jul 31, 1979
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American Hoechst Corporation
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Thomas N. Gillich
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS