DIFF Subgroup
C03C 3/253 containing germanium
Introduced: January 1985
Full Title
Glass compositions > Silica-free oxide glass compositions > containing germanium
No child classifications to compare. This is a leaf node in both IPC and CPC.
C03C 3/253 Introduced: January 1985
Glass compositions > Silica-free oxide glass compositions > containing germanium
No child classifications to compare. This is a leaf node in both IPC and CPC.