DIFF Main Group
H01J 17/00 Gas-filled discharge tubes with solid cathode (H01J25/00, H01J27/00, H01J31/00 - H01J41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Gas-filled discharge tubes with solid cathodes
CPC: Gas-filled discharge tubes with solid cathode (H01J25/00, H01J27/00, H01J31/00 - H01J41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26)
Full Title
Full titles differ between systems:
IPC:
Gas-filled discharge tubes with solid cathodes
CPC:
Gas-filled discharge tubes with solid cathode (H01J25/00, H01J27/00, H01J31/00 - H01J41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26)
Of 5 combined children, 4 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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- H01J 17/64 Tubes specially designed for switching or modulating in a waveguide, e.g. TR box IPC+CPC Available in IPC and CPC