DIFF Subgroup
G01F 1/58 by electromagnetic flowmeters
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow > by using electric or magnetic effects > by electromagnetic flowmeters
CPC:
Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow (measuring a proportion of the volume flow G01F5/00) > by using electric or magnetic effects (G01F1/66 takes precedence) > by electromagnetic flowmeters
CPC subdivides this area 5x more granularly than IPC with 4 additional codes.
4 codes are CPC-only extensions.
IPC defines codes here since 1974.
Child Classifications
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