Patent classifications
G
PHYSICS
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G02
OPTICS
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G02B
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
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6/00
Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
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G02B6/354
Switching arrangements, i.e. number of input/output ports and interconnection types
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G02B6/3554
3D constellations, i.e. with switching elements and switched beams located in a volume
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