DIFF Subgroup
G01B 7/023 Full Title
Measuring arrangements characterised by the use of electric or magnetic techniques > for measuring length, width or thickness (G01B7/004, G01B7/12 take precedence)
G01B 7/023 Measuring arrangements characterised by the use of electric or magnetic techniques > for measuring length, width or thickness (G01B7/004, G01B7/12 take precedence)