IPC Subgroup
H01J 35/02 Details
Introduced: September 1968
Last revised: January 2006
Full Title
X-ray tubes > Details
Classification Context
- Section:
- ELECTRICITY
- Class:
- ELECTRIC ELEMENTS
- Subclass:
- ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
4 direct subcodes
Child Classifications
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- H01J 35/04 Electrodes
- H01J 35/14 Arrangements for concentrating, focusing, or directing the cathode ray
- H01J 35/16 Vessels; Containers; Shields associated therewith
- H01J 35/2 Selection of substances for gas fillings; Means for obtaining or maintaining the desired pressure within the tube, e.g. by gettering