DIFF Subgroup
C03B 15/14 Drawing tubes, cylinders, or rods from the melt
Introduced: September 1968
Full Title
Drawing glass upwardly from the melt > Drawing tubes, cylinders, or rods from the melt
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
Child Classifications
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- C03B 15/16 Drawing tubes, cylinders or rods, coated with coloured layers IPC+CPC Available in IPC and CPC