Patent classifications
H
ELECTRICITY
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H04
ELECTRIC COMMUNICATION TECHNIQUE
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H04L
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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61/00
Network arrangements, protocols or services for addressing or naming
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H04L61/45
Network directories; Name-to-address mapping
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H04L61/4557
Directories for hybrid networks, e.g. including telephone numbers
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