Patent classifications
G
PHYSICS
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G02
OPTICS
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G02C
SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
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2202/00
Generic optical aspects applicable to one or more of the subgroups of G02C7/00
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G02C2202/16
Laminated or compound lenses
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