DIFF Subgroup
G01K 11/16 of organic materials
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Measuring temperature based on physical or chemical changes not covered by group , , , or > using changes in colour, translucency or reflectance > of organic materials
CPC:
Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 > using changes in colour, translucency or reflectance > of organic materials
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 2021.
Child Classifications
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