DIFF Subgroup
C03B 27/044 for flat or bent glass sheets being in a horizontal position
Introduced: January 1990
Full Title
Tempering glass products > using gas > for flat or bent glass sheets being in a horizontal position
Of 2 combined children, 1 exist in both systems.
1 codes are CPC-only extensions.
IPC defines codes here since 1990.
Child Classifications
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