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Hans Schafer
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Linsengericht, DE
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last 30 patents
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Patent Grant
Carbon black for lacquers and pigments
Patent number
4,221,772
Issue date
Sep 9, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Edith Eisenmenger
C01 - INORGANIC CHEMISTRY
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Patent Grant
Carbon black concentrate
Patent number
4,197,221
Issue date
Apr 8, 1980
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
Edith Eisenmenger
F42 - AMMUNITION BLASTING