G01N 27/18 caused by changes in the thermal conductivity of a surrounding material to be tested (G01N27/20 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: caused by changes in the thermal conductivity of a surrounding material to be tested
CPC: caused by changes in the thermal conductivity of a surrounding material to be tested (G01N27/20 takes precedence)
Full Title
Full titles differ between systems:
Investigating or analysing materials by the use of electric, electrochemical, or magnetic means > by investigating impedance > by investigating resistance > of an electrically-heated body in dependence upon change of temperature > caused by changes in the thermal conductivity of a surrounding material to be tested
Investigating or analysing materials by the use of electric, electrochemical, or magnetic means (G01N3/00 – G01N25/00 take precedence; measurement or testing of electric or magnetic variables or of electric or magnetic properties of materials G01R) > by investigating impedance > by investigating resistance > of an electrically-heated body in dependence upon change of temperature > caused by changes in the thermal conductivity of a surrounding material to be tested (G01N27/20 takes precedence)
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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