CPC Subgroup Additional Only
H01J 2329/94 Means for exhausting the vessel or maintaining vacuum within the vessel
Full Title
Electron emission display panels, e.g. field emission display panels > Means for exhausting the vessel or maintaining vacuum within the vessel
2 direct subcodes
Child Classifications
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- H01J 2329/941 Means for exhausting the vessel
- H01J 2329/943 Means for maintaining vacuum within the vessel