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Otto Krist
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Overath, DE
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last 30 patents
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Patent Grant
Coating for metallic substrates
Patent number
4,689,271
Issue date
Aug 25, 1987
Bayer Aktiengesellschaft
Hans-Joachim Schittenhelm
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Enamel frit and a one-bake two- and multilayer enamelling process
Patent number
4,486,542
Issue date
Dec 4, 1984
Bayer Aktiengesellschaft
Otto Krist
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Enamel frit and a process for two-layer and multi-layer one-fire en...
Patent number
4,430,438
Issue date
Feb 7, 1984
Bayer Aktiengesellschaft
Otto Krist
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...