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Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04Q
SELECTING
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11/00
Selecting arrangements for multiplex systems
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H04Q11/0001
using optical switching
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H04Q11/0005
Switch and router aspects
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H04Q2011/0007
Construction
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H04Q2011/0018
using tunable transmitters or receivers
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