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'Igard' solid bifocal lens
OPHTHALMIC LENSES
bifocal lens
Combined Optical Industries Ltd
Europe: United Kingdom
1947
C29 plastic
1999.5429
OPHTHALMIC LENSES
bifocal lens
Combined Optical Industries Ltd
Europe: United Kingdom
1947
C29 plastic
'Igard' solid bifocal lens. Back surface circular segment.
1999.5429