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PCE
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CPC Subgroup
G02B 1/113

using inorganic layer materials only

Full Title

Optical elements characterised by the material of which they are made; Optical coatings for optical elements > Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence) > Anti-reflection coatings > using inorganic layer materials only

1 direct subcode

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