Patent classifications
C
CHEMISTRY; METALLURGY
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C01
INORGANIC CHEMISTRY
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C01P
INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
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2006/00
Physical properties of inorganic compounds
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C01P2006/60
Optical properties, e.g. expressed in CIELAB-values
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C01P2006/63
a* (red-green axis)
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