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PCE
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CPC Subgroup Additional Only
H01J 2229/8924

having particular properties for protecting the vessel, e.g. against abrasion, water or shock

Full Title

Details of cathode ray tubes or electron beam tubes (H01J2329/00 takes precedence) > Optical components associated with the vessel > having particular properties for protecting the vessel, e.g. against abrasion, water or shock