Earth materials (G01N33/42 takes precedence)

Full Title

Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Earth materials (G01N33/42 takes precedence)

Child Classifications

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• G01N 33/241
• G01N 33/243
• G01N 33/245
• G01N 33/246
• G01N 33/248