DIFF Subgroup
G05D 23/02 with sensing element expanding and contracting in response to changes of temperature (G05D23/13 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: with sensing element expanding and contracting in response to changes of temperature
CPC: with sensing element expanding and contracting in response to changes of temperature (G05D23/13 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Control of temperature > without auxiliary power > with sensing element expanding and contracting in response to changes of temperature
CPC:
Control of temperature > without auxiliary power > with sensing element expanding and contracting in response to changes of temperature (G05D23/13 takes precedence)
CPC subdivides this area 4x more granularly than IPC with 3 additional codes.
3 codes are CPC-only extensions.
Child Classifications
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