DIFF Subgroup
H01J 19/64 Means forming part of the tube for the purpose supporting it
Introduced: September 1968
Title
Titles differ between systems:
IPC: Means forming part of the tube for the purpose of supporting it
CPC: Means forming part of the tube for the purpose supporting it
Full Title
Full titles differ between systems:
IPC:
Details of vacuum tubes of the types covered by group > Means forming part of the tube for the purpose of supporting it
CPC:
Details of vacuum tubes of the types covered by group H01J21/00 > Means forming part of the tube for the purpose supporting it
No child classifications to compare. This is a leaf node in both IPC and CPC.