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Inventor
HALL KATRINA D
US
2 patents
Patents
2 patents
US10148704B2
Dec 4, 2018
Telephone number simplification for VoIP networks
LEVEL 3 COMMUNICATIONS LLC
0 citations
45
US9838439B2
Dec 5, 2017
Telephone number simplification for VoIP networks
LEVEL 3 COMMUNICATIONS LLC
0 citations
45