G21H 3/02 in which material is excited to luminesce by the radiation (lamps in which a gas filling or screen or coating is excited to luminesce by radioactive material structurally associated with the lamp H01J65/00)
Introduced: September 1968
Title
Titles differ between systems:
IPC: in which material is excited to luminesce by the radiation
CPC: in which material is excited to luminesce by the radiation (lamps in which a gas filling or screen or coating is excited to luminesce by radioactive material structurally associated with the lamp H01J65/00)
Full Title
Full titles differ between systems:
Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electric energy, e.g. light > in which material is excited to luminesce by the radiation
Arrangements for direct conversion of radiation energy from radioactive sources into forms of energy other than electric energy, e.g. light > in which material is excited to luminesce by the radiation (lamps in which a gas filling or screen or coating is excited to luminesce by radioactive material structurally associated with the lamp H01J65/00)
No child classifications to compare. This is a leaf node in both IPC and CPC.