Patent classifications
C
CHEMISTRY; METALLURGY
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C08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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C08K
Use of inorganic or non-macromolecular organic substances as compounding ingredients
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3/00
Use of inorganic substances as compounding ingredients
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C08K3/30
Sulfur-, selenium- or tellurium-containing compounds
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