Subheadings
90.02.11
Lenses; objective, for cameras, projectors or photographic enlargers or reducers, mounted, being parts or fittings for instruments or apparatus, of any material (excluding glass not optically worked)
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90.02.19
Lenses; objective, (other than for cameras, projectors or photographic enlargers or reducers), mounted, of any material (excluding elements of glass not optically worked)
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90.02.20
Filters; mounted as parts or fittings for instruments or apparatus, of any material (excluding elements of glass not optically worked)
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90.02.90
Optical elements; n.e.c. in heading no. 9002 (e.g. prisms and mirrors), mounted, being parts or fittings for instruments or apparatus, of any material (excluding elements of glass not optically worked)
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