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PCE
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DIFF Subgroup
G01K 11/18

of materials which change translucency

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 materials which change translucency

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 materials which change translucency

No child classifications to compare. This is a leaf node in both IPC and CPC.