DIFF Subgroup Additional Only
H01J 2229/8633 Meshes and patterns
Full Title
Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Passive shielding means associated with the vessel > Meshes and patterns
H01J 2229/8633 Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Passive shielding means associated with the vessel > Meshes and patterns