CPC Main Group Additional Only
H01J 2209/00 Apparatus and processes for manufacture of discharge tubes
7 direct subcodes
Child Classifications
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- H01J 2209/01 Generalised techniques
- H01J 2209/02 Manufacture of cathodes
- H01J 2209/18 Assembling together the component parts of the discharge tube
- H01J 2209/236 Manufacture of magnetic deflecting devices
- H01J 2209/26 Sealing parts of the vessel to provide a vacuum enclosure
- H01J 2209/38 Control of maintenance of pressure in the vessel
- H01J 2209/46 Handling of tube components during manufacture