G01L21/18 - CPC Classification Index

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Classification
G01L
G01L21/00
G01L21/16
G01L21/18

ClassID:

166887 ⎘

G01L21/18 - CPC Classification

Classification description:

Vacuum gauges by measuring variation of frictional resistance of gases using a pendulum

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Classification
G01L
G01L21/00
G01L21/16
G01L21/18

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