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PCE
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DIFF Subgroup
C03B 27/012

by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling (C03B27/008, C03B27/016 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling

CPC: by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling (C03B27/008, C03B27/016 take precedence)

Full Title

Full titles differ between systems:

IPC:

Tempering glass products > by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling

CPC:

Tempering glass products > by heat treatment, e.g. for crystallisation; Heat treatment of glass products before tempering by cooling (C03B27/008, C03B27/016 take precedence)

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